-> v0.7.3

Merge pull request #131 from sveltejs/webpack-insanity
handle case where webpack asset is an array instead of a string
2026-01-13 19:45:26 +00:00 · 2018-02-20 12:23:32 -05:00 · 2018-02-20 12:18:29 -05:00 · 2018-02-20 12:18:10 -05:00 · 2018-02-20 11:11:55 -05:00 · 2018-02-20 11:11:02 -05:00
80 changed files with 2546 additions and 8126 deletions
--- a/.eslintrc.json
+++ b/.eslintrc.json
@@ -1,38 +0,0 @@
-{
-    "root": true,
-    "rules": {
-        "semi": [ 2, "always" ],
-        "space-before-blocks": [ 2, "always" ],
-        "no-mixed-spaces-and-tabs": [ 2, "smart-tabs" ],
-        "no-cond-assign": 0,
-        "no-unused-vars": 2,
-        "object-shorthand":  [ 2, "always" ],
-        "no-const-assign": 2,
-        "no-class-assign": 2,
-        "no-this-before-super": 2,
-        "no-var": 2,
-        "no-unreachable": 2,
-        "valid-typeof": 2,
-        "quote-props": [ 2, "as-needed" ],
-        "one-var": [ 2, "never" ],
-        "prefer-arrow-callback": 2,
-        "prefer-const": [ 2, { "destructuring": "all" } ],
-        "arrow-spacing": 2,
-        "no-inner-declarations": 0
-    },
-    "env": {
-        "es6": true,
-        "browser": true,
-        "node": true,
-        "mocha": true
-    },
-    "extends": [
-        "eslint:recommended",
-        "plugin:import/errors",
-        "plugin:import/warnings"
-    ],
-    "parserOptions": {
-        "ecmaVersion": 8,
-        "sourceType": "module"
-    }
-}
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,16 @@
 .DS_Store
+yarn.lock
 node_modules
 cypress/screenshots
-test/app/.sapper
+test/app/.sapper
+test/app/app/manifest
+runtime.js
+runtime.js.map
+cli.js
+cli.js.map
+middleware.js
+middleware.js.map
+core.js
+core.js.map
+webpack/config.js
+webpack/config.js.map
--- a/.travis.yml
+++ b/.travis.yml
@@ -3,6 +3,7 @@ sudo: false
 language: node_js

 node_js:
+  - "6"
  - "stable"

 env:
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,91 @@
 # sapper changelog

+## 0.7.3
+
+* Handle webpack assets that are arrays instead of strings ([#131](https://github.com/sveltejs/sapper/pull/131))
+* Wait for new server to start before broadcasting HMR update ([#129](https://github.com/sveltejs/sapper/pull/129))
+
+## 0.7.2
+
+* Add `hmr-client.js` to package
+* Wait until first successful client build before creating service-worker.js
+
+## 0.7.1
+
+* Add missing `tslib` dependency
+
+## 0.7.0
+
+* Restructure app layout (see [migration guide](https://sapper.svelte.technology/guide#0-6-to-0-7)) ([#126](https://github.com/sveltejs/sapper/pull/126))
+* Support `this.redirect(status, location)` and `this.error(status, error)` in `preload` functions ([#127](https://github.com/sveltejs/sapper/pull/127))
+* Add `sapper dev` command
+* Add `sapper --help` command
+
+## 0.6.4
+
+* Prevent phantom HMR requests in production mode ([#114](https://github.com/sveltejs/sapper/pull/114))
+
+## 0.6.3
+
+* Ignore non-HTML responses when crawling during `export`
+* Build in prod mode for `export`
+
+## 0.6.2
+
+* Handle unspecified type in `sapper export`
+
+## 0.6.1
+
+* Fix `pkg.files` and `pkg.bin`
+
+## 0.6.0
+
+* Hydrate on first load, and only on first load ([#93](https://github.com/sveltejs/sapper/pull/93))
+* Identify clashes between page and server routes ([#96](https://github.com/sveltejs/sapper/pull/96))
+* Remove Express-specific utilities, for compatbility with Polka et al ([#94](https://github.com/sveltejs/sapper/issues/94))
+* Return a promise from `init` when first page has rendered ([#99](https://github.com/sveltejs/sapper/issues/99))
+* Handle invalid hash links ([#104](https://github.com/sveltejs/sapper/pull/104))
+* Avoid `URLSearchParams` ([#107](https://github.com/sveltejs/sapper/pull/107))
+* Don't automatically set `Content-Type` for server routes ([#111](https://github.com/sveltejs/sapper/pull/111))
+* Handle empty query string routes, e.g. `/?` ([#105](https://github.com/sveltejs/sapper/pull/105))
+
+## 0.5.1
+
+* Only write service-worker.js to filesystem in dev mode ([#90](https://github.com/sveltejs/sapper/issues/90))
+
+## 0.5.0
+
+* Experimental support for `sapper export` ([#9](https://github.com/sveltejs/sapper/issues/9))
+* Lazily load chokidar, for faster startup ([#64](https://github.com/sveltejs/sapper/pull/64))
+
+## 0.4.0
+
+* `%sapper.main%` has been replaced with `%sapper.scripts%` ([#86](https://github.com/sveltejs/sapper/issues/86))
+* Node 6 support ([#67](https://github.com/sveltejs/sapper/pull/67))
+* Explicitly load css-loader and style-loader ([#72](https://github.com/sveltejs/sapper/pull/72))
+* DELETE requests are handled with `del` exports ([#77](https://github.com/sveltejs/sapper/issues/77))
+* Send preloaded data for first route to client, where possible ([#3](https://github.com/sveltejs/sapper/issues/3))
+
+## 0.3.2
+
+* Expose `prefetch` function ([#61](https://github.com/sveltejs/sapper/pull/61))
+
+## 0.3.1
+
+* Fix missing `runtime.js`
+
+## 0.3.0
+
+* Move `sapper/runtime/app.js` to `sapper/runtime.js`
+* Cancel navigation if overtaken by second navigation ([#48](https://github.com/sveltejs/sapper/issues/48))
+* Store preloaded data, to avoiding double prefetching ([#49](https://github.com/sveltejs/sapper/issues/49))
+* Pass server request object to `preload` ([#54](https://github.com/sveltejs/sapper/pull/54))
+* Nested routes ([#55](https://github.com/sveltejs/sapper/issues/55))
+
+## 0.2.10
+
+* Handle deep links correctly ([#44](https://github.com/sveltejs/sapper/issues/44))
+
 ## 0.2.9

 * Don't write files to disk in prod mode
--- a/9
+++ b/9
@@ -0,0 +1,9 @@
+Copyright (c) 2017 [these people](https://github.com/sveltejs/sapper/graphs/contributors).
+
+Permission is hereby granted by the authors of this software, to any person, to use the software for any purpose, free of charge, including the rights to run, read, copy, change, distribute and sell it, and including usage rights to any patents the authors may hold on it, subject to the following conditions:
+
+This license, or a link to its text, must be included with all copies of the software and any derivative works.
+
+Any modification to the software submitted to the authors may be incorporated into the software under the terms of this license.
+
+The software is provided "as is", without warranty of any kind, including but not limited to the warranties of title, fitness, merchantability and non-infringement. The authors have no obligation to provide support or updates for the software, and may not be held liable for any damages, claims or other liability arising from its use.
--- a/README.md
+++ b/README.md
@@ -1,150 +1,37 @@
 # sapper

-Combat-ready apps, engineered by Svelte.
-
-## This is not a thing yet
-
-If you visit this README in a few weeks, hopefully it will have blossomed into the app development framework we deserve. Right now, it's just a set of ideas.
-
---
-
-[Next.js](https://github.com/zeit/next.js/) introduced a beautiful idea — that you should be able to build your app as universal React components in a special `pages` directory, and the framework should take care of routing and rendering on both client and server. What if we did the same thing for Svelte?
-
-High-level goals:
-
-* Extreme ease of development
-* Code-splitting and HMR out of the box (probably via webpack)
-* Best-in-class performance
-* As little magic as possible. Anyone should be able to understand how everything fits together, and e.g. make changes to the webpack config
-* Links are just `<a>` tags, no special `<Link>` components
+[Military-grade progressive web apps, powered by Svelte.](https://sapper.svelte.technology)


-## Design
+## What is Sapper?

-A Sapper app is just an Express app (conventionally, `server.js`) that uses the `sapper` middleware:
+Sapper is a framework for building high-performance universal web apps. [Read the guide](https://sapper.svelte.technology/guide) or the [introductory blog post](https://svelte.technology/blog/sapper-towards-the-ideal-web-app-framework) to learn more.

-```js
-const app = require('express')();
-const sapper = require('sapper');

-app.use(sapper());
+## Get started

-const { PORT = 3000 } = process.env;
-app.listen(PORT, () => {
-  console.log(`listening on port ${PORT}`);
-});
+Clone the [starter project template](https://github.com/sveltejs/sapper-template) with [degit](https://github.com/rich-harris/degit)...
+
+```bash
+npx degit sveltejs/sapper-template my-app
 ```

-The middleware serves pages that match files in the `routes` directory, and assets generated by webpack. In development mode, the middleware once activated watches `routes` to keep the app up-to-date.
+...then install dependencies and start the dev server...

-
-## Routing
-
-Like Next, routes are defined by the project directory structure, but with some crucial differences:
-
-* Files with an `.html` extension are treated as Svelte components. The `routes/about.html` (or `routes/about/index.html`) would create the `/about` route.
-* Files with a `.js` or `.mjs` extension are more generic route handlers. These files should export functions corresponding to the HTTP methods they support (example below).
-* Instead of route masking, we embed parameters in the filename. For example `post/[id].html` maps to `/post/:id`, and the component will be rendered with the appropriate parameter.
-* Nested routes (read [this article](https://joshduff.com/2015-06-why-you-need-a-state-router.md)) can be handled by creating a file that matches the subroute — for example, `routes/app/settings/[submenu].html` would match `/app/settings/profile` *and* `app/settings`, but in the latter case the `submenu` parameter would be `null`.
-
-An example of a generic route:
-
-```js
-// routes/api/post/[id].js
-export async function get(req, res) {
-  try {
-    const data = await getPostFromDatabase(req.params.id);
-    const json = JSON.stringify(data);
-
-    res.set({
-      'Content-Type': 'application/json',
-      'Content-Length': json.length
-    });
-
-    res.send(json);
-  } catch (err) {
-    res.status(500).send(err.message);
-  }
-}
+```bash
+cd my-app
+npm install
+npm run dev
 ```

-Or, if you omit the `res` argument, it can use the return value:
+...and navigate to [localhost:3000](http://localhost:3000). To build and run in production mode:

-```js
-// routes/api/post/[id].js
-export async function get(req) {
-  return await getPostFromDatabase(req.params.id);
-}
+```bash
+npm run build
+npm start
 ```


-## Client-side app
+## License

-Sapper will create (and in development mode, update) a barebones `main.js` file that dynamically imports individual routes and renders them — something like this:
-
-```js
-window.addEventListener('click', event => {
-  let a = event.target;
-  while (a && a.nodeName !== 'A') a = a.parentNode;
-  if (!a) return;
-
-  if (navigate(new URL(a.href))) event.preventDefault();
-});
-
-const target = document.querySelector('#sapper');
-let component;
-
-function navigate(url) {
-  if (url.origin !== window.location.origin) return;
-
-  let match;
-  let params = {};
-  const query = {};
-
-  function render(mod) {
-    if (component) {
-      component.destroy();
-    } else {
-      target.innerHTML = '';
-    }
-
-    component = new mod.default({
-      target,
-      data: { query, params },
-      hydrate: !!component
-    });
-  }
-
-  if (url.pathname === '/about') {
-    import('/about/index.html').then(render);
-  } else if (url.pathname === '/') {
-    import('/index.js').then(render);
-  } else if (match = /^\/post\/([^\/]+)$/.exec(url.pathname)) {
-    params.id = match[1];
-    import('/post/[id].html').then(render);
-  } else if (match = /^\/([^\/]+)$/.exec(url.pathname)) {
-    params.wildcard = match[1];
-    import('/[wildcard].html').then(render);
-  }
-
-  return true;
-}
-
-navigate(window.location);
-```
-
-We're glossing over a lot of important stuff here — e.g. handling `popstate` — but you get the idea. Knowledge of all the possible routes means we can generate optimal code, much in the same way that statically analysing Svelte templates allows the compiler to generate optimal code.
-
-
-## Things to figure out
-
-* How to customise the overall page template
-* An equivalent of `getInitialProps`
-* Critical CSS
-* `store` integration
-* Route transitions
-* Equivalent of `next export`
-* A good story for realtime/GraphQL stuff
-* Service worker
-* Using `Link...rel=preload` headers to push main.js/[route].js plus styles
-* ...and lots of other things that haven't occurred to me yet.
+[LIL](LICENSE)
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -15,3 +15,7 @@ environment:
 install:
  - ps: Install-Product node $env:nodejs_version
  - npm install
+
+test_script:
+  - node --version && npm --version
+  - npm test
--- a/cli/index.js
+++ b/cli/index.js
@@ -1,8 +0,0 @@
-#!/usr/bin/env node
-
-const cmd = process.argv[2];
-
-if (cmd === 'build') {
-	process.env.NODE_ENV = 'production';
-	require('../lib/build.js')();
-}
--- a/hmr-client.js
+++ b/hmr-client.js
@@ -0,0 +1,28 @@
+let source;
+
+function check() {
+	if (module.hot.status() === 'idle') {
+		module.hot.check(true).then(modules => {
+			console.log(`HMR updated`);
+		});
+	}
+}
+
+export function connect(port) {
+	if (source || !window.EventSource) return;
+
+	source = new EventSource(`http://localhost:${port}/hmr`);
+
+	source.onopen = function(event) {
+		console.log(`HMR connected`);
+	};
+
+	source.onmessage = function(event) {
+		const data = JSON.parse(event.data);
+		if (!data) return; // just a heartbeat
+
+		if (data.status === 'completed') {
+			check();
+		}
+	};
+}
--- a/lib/build.js
+++ b/lib/build.js
@@ -1,42 +0,0 @@
-const fs = require('fs');
-const path = require('path');
-const mkdirp = require('mkdirp');
-const rimraf = require('rimraf');
-const { client, server } = require('./utils/compilers.js');
-const create_app = require('./utils/create_app.js');
-const generate_asset_cache = require('./utils/generate_asset_cache.js');
-const { dest } = require('./config.js');
-
-module.exports = () => {
-	mkdirp.sync(dest);
-	rimraf.sync(path.join(dest, '**/*'));
-
-	// create main.js and server-routes.js
-	create_app();
-
-	function handleErrors(err, stats) {
-		if (err) {
-			console.error(err ? err.details || err.stack || err.message || err : 'Unknown error');
-			process.exit(1);
-		}
-
-		if (stats.hasErrors()) {
-			console.log(stats.toString({ colors: true }));
-			process.exit(1);
-		}
-	}
-
-	client.run((err, clientStats) => {
-		handleErrors(err, clientStats);
-		const clientInfo = clientStats.toJson();
-		fs.writeFileSync(path.join(dest, 'stats.client.json'), JSON.stringify(clientInfo, null, '  '));
-
-		server.run((err, serverStats) => {
-			handleErrors(err, serverStats);
-			const serverInfo = serverStats.toJson();
-			fs.writeFileSync(path.join(dest, 'stats.server.json'), JSON.stringify(serverInfo, null, '  '));
-
-			generate_asset_cache(clientInfo, serverInfo);
-		});
-	});
-};
--- a/lib/config.js
+++ b/lib/config.js
@@ -1,21 +0,0 @@
-const path = require('path');
-const mkdirp = require('mkdirp');
-const rimraf = require('rimraf');
-
-exports.dev = process.env.NODE_ENV !== 'production';
-
-exports.templates = path.resolve(process.env.SAPPER_TEMPLATES || 'templates');
-
-exports.src = path.resolve(process.env.SAPPER_ROUTES || 'routes');
-
-exports.dest = path.resolve(process.env.SAPPER_DEST || '.sapper');
-
-if (exports.dev) {
-	mkdirp.sync(exports.dest);
-	rimraf.sync(path.join(exports.dest, '**/*'));
-}
-
-exports.entry = {
-	client: path.resolve(exports.templates, '.main.rendered.js'),
-	server: path.resolve(exports.dest, 'server-entry.js')
-};
--- a/lib/index.js
+++ b/lib/index.js
@@ -1,238 +0,0 @@
-const fs = require('fs');
-const path = require('path');
-const route_manager = require('./route_manager.js');
-const templates = require('./templates.js');
-const create_app = require('./utils/create_app.js');
-const create_watcher = require('./utils/create_watcher.js');
-const compilers = require('./utils/compilers.js');
-const generate_asset_cache = require('./utils/generate_asset_cache.js');
-const escape_html = require('escape-html');
-const { dest, dev } = require('./config.js');
-
-function connect_dev() {
-	create_app();
-
-	const watcher = create_watcher();
-
-	let asset_cache;
-
-	const middleware = compose_handlers([
-		require('webpack-hot-middleware')(compilers.client, {
-			reload: true,
-			path: '/__webpack_hmr',
-			heartbeat: 10 * 1000
-		}),
-
-		async (req, res, next) => {
-			asset_cache = await watcher.ready;
-			next();
-		},
-
-		set_req_pathname,
-
-		get_asset_handler({
-			filter: pathname => pathname === '/index.html',
-			type: 'text/html',
-			cache: 'max-age=600',
-			fn: () => asset_cache.client.index
-		}),
-
-		get_asset_handler({
-			filter: pathname => pathname === '/service-worker.js',
-			type: 'application/javascript',
-			cache: 'max-age=600',
-			fn: () => asset_cache.client.service_worker
-		}),
-
-		get_asset_handler({
-			filter: pathname => pathname.startsWith('/client/'),
-			type: 'application/javascript',
-			cache: 'max-age=31536000',
-			fn: pathname => asset_cache.client.chunks[pathname]
-		}),
-
-		get_route_handler(() => asset_cache),
-
-		get_not_found_handler(() => asset_cache)
-	]);
-
-	middleware.close = () => {
-		watcher.close();
-		// TODO shut down chokidar
-	};
-
-	return middleware;
-}
-
-function connect_prod() {
-	const asset_cache = generate_asset_cache(
-		read_json(path.join(dest, 'stats.client.json')),
-		read_json(path.join(dest, 'stats.server.json'))
-	);
-
-	const middleware = compose_handlers([
-		set_req_pathname,
-
-		get_asset_handler({
-			filter: pathname => pathname === '/index.html',
-			type: 'text/html',
-			cache: 'max-age=600',
-			fn: () => asset_cache.client.index
-		}),
-
-		get_asset_handler({
-			filter: pathname => pathname === '/service-worker.js',
-			type: 'application/javascript',
-			cache: 'max-age=600',
-			fn: () => asset_cache.client.service_worker
-		}),
-
-		get_asset_handler({
-			filter: pathname => pathname.startsWith('/client/'),
-			type: 'application/javascript',
-			cache: 'max-age=31536000',
-			fn: pathname => asset_cache.client.chunks[pathname]
-		}),
-
-		get_route_handler(() => asset_cache),
-
-		get_not_found_handler(() => asset_cache)
-	]);
-
-	// here for API consistency between dev, and prod, but
-	// doesn't actually need to do anything
-	middleware.close = () => {};
-
-	return middleware;
-}
-
-module.exports = dev ? connect_dev : connect_prod;
-
-function set_req_pathname(req, res, next) {
-	req.pathname = req.url.replace(/\?.+/, '');
-	next();
-}
-
-function get_asset_handler(opts) {
-	return (req, res, next) => {
-		if (!opts.filter(req.pathname)) return next();
-
-		res.set({
-			'Content-Type': opts.type,
-			'Cache-Control': opts.cache
-		});
-		res.end(opts.fn(req.pathname));
-	};
-}
-
-function get_route_handler(fn) {
-	return async function handle_route(req, res, next) {
-		const url = req.pathname;
-
-		const { client, server } = fn();
-
-		// whatever happens, we're going to serve some HTML
-		res.set({
-			'Content-Type': 'text/html'
-		});
-
-		try {
-			for (const route of route_manager.routes) {
-				if (route.test(url)) {
-					req.params = route.exec(url);
-
-					const mod = require(server.entry)[route.id];
-
-					if (route.type === 'page') {
-						// preload main.js and current route
-						// TODO detect other stuff we can preload? images, CSS, fonts?
-						res.set('Link', `<${client.main_file}>;rel="preload";as="script", <${client.routes[route.id]}>;rel="preload";as="script"`);
-
-						const data = { params: req.params, query: req.query };
-
-						if (mod.preload) {
-							const promise = Promise.resolve(mod.preload(data)).then(preloaded => {
-								Object.assign(data, preloaded);
-								return mod.render(data);
-							});
-
-							await templates.stream(res, 200, {
-								main: client.main_file,
-								html: promise.then(rendered => rendered.html),
-								head: promise.then(({ head }) => `<noscript id='sapper-head-start'></noscript>${head}<noscript id='sapper-head-end'></noscript>`),
-								styles: promise.then(({ css }) => (css && css.code ? `<style>${css.code}</style>` : ''))
-							});
-						} else {
-							const { html, head, css } = mod.render(data);
-
-							const page = templates.render(200, {
-								main: client.main_file,
-								html,
-								head: `<noscript id='sapper-head-start'></noscript>${head}<noscript id='sapper-head-end'></noscript>`,
-								styles: (css && css.code ? `<style>${css.code}</style>` : '')
-							});
-
-							res.end(page);
-						}
-					}
-
-					else {
-						const handler = mod[req.method.toLowerCase()];
-						if (handler) handler(req, res, next);
-					}
-
-					return;
-				}
-			}
-
-			next();
-		} catch(err) {
-			res.status(500);
-			res.end(templates.render(500, {
-				title: (err && err.name) || 'Internal server error',
-				url,
-				error: escape_html(err && (err.details || err.message || err) || 'Unknown error'),
-				stack: err && err.stack.split('\n').slice(1).join('\n')
-			}));
-		}
-	};
-}
-
-function get_not_found_handler(fn) {
-	return function handle_not_found(req, res) {
-		const asset_cache = fn();
-
-		res.status(404);
-		res.end(templates.render(404, {
-			title: 'Not found',
-			status: 404,
-			method: req.method,
-			main: asset_cache.client.main_file,
-			url: req.url
-		}));
-	};
-}
-
-function compose_handlers(handlers) {
-	return (req, res, next) => {
-		let i = 0;
-		function go() {
-			const handler = handlers[i];
-
-			if (handler) {
-				handler(req, res, () => {
-					i += 1;
-					go();
-				});
-			} else {
-				next();
-			}
-		}
-
-		go();
-	};
-}
-
-function read_json(file) {
-	return JSON.parse(fs.readFileSync(file, 'utf-8'));
-}
--- a/lib/route_manager.js
+++ b/lib/route_manager.js
@@ -1,31 +0,0 @@
-const glob = require('glob');
-const chokidar = require('chokidar');
-const create_routes = require('./utils/create_routes.js');
-const { src, dev } = require('./config.js');
-
-const callbacks = [];
-
-exports.onchange = fn => {
-	callbacks.push(fn);
-};
-
-function update() {
-	exports.routes = create_routes(
-		glob.sync('**/*.+(html|js|mjs)', { cwd: src })
-	);
-
-	callbacks.forEach(fn => fn());
-}
-
-update();
-
-if (dev) {
-	const watcher = chokidar.watch(`${src}/**/*.+(html|js|mjs)`, {
-		ignoreInitial: true,
-		persistent: false
-	});
-
-	watcher.on('add', update);
-	watcher.on('change', update);
-	watcher.on('unlink', update);
-}
--- a/lib/templates.js
+++ b/lib/templates.js
@@ -1,90 +0,0 @@
-const fs = require('fs');
-const glob = require('glob');
-const chokidar = require('chokidar');
-const { dev } = require('./config.js');
-
-let templates;
-
-function create_templates() {
-	templates = glob.sync('*.html', { cwd: 'templates' })
-		.map(file => {
-			const template = fs.readFileSync(`templates/${file}`, 'utf-8');
-			const status = file.replace('.html', '').toLowerCase();
-
-			if (!/^[0-9x]{3}$/.test(status)) {
-				throw new Error(`Bad template — should be a valid status code like 404.html, or a wildcard like 2xx.html`);
-			}
-
-			const specificity = (
-				(status[0] === 'x' ? 0 : 4) +
-				(status[1] === 'x' ? 0 : 2) +
-				(status[2] === 'x' ? 0 : 1)
-			);
-
-			const pattern = new RegExp(`^${status.split('').map(d => d === 'x' ? '\\d' : d).join('')}$`);
-
-			return {
-				test: status => pattern.test(status),
-				specificity,
-				render: data => {
-					return template.replace(/%sapper\.(\w+)%/g, (match, key) => {
-						return key in data ? data[key] : '';
-					});
-				},
-				stream: async (res, data) => {
-					let i = 0;
-
-					do {
-						const start = template.indexOf('%sapper', i);
-
-						if (start === -1) {
-							res.end(template.slice(i));
-							return;
-						}
-
-						res.write(template.slice(i, start));
-
-						const end = template.indexOf('%', start + 1);
-						if (end === -1) {
-							throw new Error(`Bad template`); // TODO validate ahead of time
-						}
-
-						const tag = template.slice(start + 1, end);
-						const match = /sapper\.(\w+)/.exec(tag);
-						if (!match || !(match[1] in data)) throw new Error(`Bad template`); // TODO ditto
-
-						res.write(await data[match[1]]);
-						i = end + 1;
-					} while (i < template.length);
-				}
-			};
-		})
-		.sort((a, b) => b.specificity - a.specificity);
-}
-
-create_templates();
-
-if (dev) {
-	const watcher = chokidar.watch('templates/**.html', {
-		ignoreInitial: true,
-		persistent: false
-	});
-
-	watcher.on('add', create_templates);
-	watcher.on('change', create_templates);
-	watcher.on('unlink', create_templates);
-}
-
-exports.render = (status, data) => {
-	const template = templates.find(template => template.test(status));
-	if (template) return template.render(data);
-
-	return `Missing template for status code ${status}`;
-};
-
-exports.stream = (res, status, data) => {
-	const template = templates.find(template => template.test(status));
-	if (template) return template.stream(res, data);
-
-	return `Missing template for status code ${status}`;
-};
--- a/lib/utils/compilers.js
+++ b/lib/utils/compilers.js
@@ -1,11 +0,0 @@
-const path = require('path');
-const relative = require('require-relative');
-const webpack = relative('webpack', process.cwd());
-
-exports.client = webpack(
-	require(path.resolve('webpack.client.config.js'))
-);
-
-exports.server = webpack(
-	require(path.resolve('webpack.server.config.js'))
-);
--- a/lib/utils/create_app.js
+++ b/lib/utils/create_app.js
@@ -1,83 +0,0 @@
-const fs = require('fs');
-const path = require('path');
-const chokidar = require('chokidar');
-const route_manager = require('../route_manager.js');
-const { src, entry, dev } = require('../config.js');
-
-function posixify(file) {
-	return file.replace(/[/\\]/g, '/');
-}
-
-function create_app() {
-	const { routes } = route_manager;
-
-	function create_client_main() {
-		const template = fs.readFileSync('templates/main.js', 'utf-8');
-
-		const code = `[${
-			routes
-				.filter(route => route.type === 'page')
-				.map(route => {
-					const params = route.dynamic.length === 0 ?
-						'{}' :
-						`{ ${route.dynamic.map((part, i) => `${part}: match[${i + 1}]`).join(', ') } }`;
-
-					const file = posixify(`${src}/${route.file}`);
-					return `{ pattern: ${route.pattern}, params: match => (${params}), load: () => import(/* webpackChunkName: "${route.id}" */ '${file}') }`
-				})
-				.join(', ')
-		}]`;
-
-		let main = template
-			.replace(/__app__/g, posixify(path.resolve(__dirname, '../../runtime/app.js')))
-			.replace(/__routes__/g, code)
-			.replace(/__dev__/g, String(dev));
-
-		if (dev) {
-			const hmr_client = posixify(require.resolve(`webpack-hot-middleware/client`));
-			main += `\n\nimport('${hmr_client}?path=/__webpack_hmr&timeout=20000'); if (module.hot) module.hot.accept();`
-		}
-
-		fs.writeFileSync(entry.client, main);
-
-		// need to fudge the mtime, because webpack is soft in the head
-		const { atime, mtime } = fs.statSync(entry.client);
-		fs.utimesSync(entry.client, new Date(atime.getTime() - 999999), new Date(mtime.getTime() - 999999));
-	}
-
-	function create_server_routes() {
-		const imports = routes
-			.map(route => {
-				const file = posixify(`${src}/${route.file}`);
-				return route.type === 'page' ?
-					`import ${route.id} from '${file}';` :
-					`import * as ${route.id} from '${file}';`;
-			})
-			.join('\n');
-
-		const exports = `export { ${routes.map(route => route.id)} };`;
-
-		fs.writeFileSync(entry.server, `${imports}\n\n${exports}`);
-
-		const { atime, mtime } = fs.statSync(entry.server);
-		fs.utimesSync(entry.server, new Date(atime.getTime() - 999999), new Date(mtime.getTime() - 999999));
-	}
-
-	create_client_main();
-	create_server_routes();
-}
-
-if (dev) {
-	route_manager.onchange(create_app);
-
-	const watcher = chokidar.watch(`templates/main.js`, {
-		ignoreInitial: true,
-		persistent: false
-	});
-
-	watcher.on('add', create_app);
-	watcher.on('change', create_app);
-	watcher.on('unlink', create_app);
-}
-
-module.exports = create_app;
--- a/lib/utils/create_watcher.js
+++ b/lib/utils/create_watcher.js
@@ -1,75 +0,0 @@
-const fs = require('fs');
-const path = require('path');
-const chalk = require('chalk');
-const compilers = require('./compilers.js');
-const generate_asset_cache = require('./generate_asset_cache.js');
-const { dest } = require('../config.js');
-
-function deferred() {
-	const d = {};
-
-	d.promise = new Promise((fulfil, reject) => {
-		d.fulfil = fulfil;
-		d.reject = reject;
-	});
-
-	return d;
-}
-
-module.exports = function create_watcher() {
-	const deferreds = {
-		client: deferred(),
-		server: deferred()
-	};
-
-	const invalidate = () => Promise.all([
-		deferreds.client.promise,
-		deferreds.server.promise
-	]).then(([client_stats, server_stats]) => {
-		const client_info = client_stats.toJson();
-		fs.writeFileSync(path.join(dest, 'stats.client.json'), JSON.stringify(client_info, null, '  '));
-
-		const server_info = server_stats.toJson();
-		fs.writeFileSync(path.join(dest, 'stats.server.json'), JSON.stringify(server_info, null, '  '));
-
-		return generate_asset_cache(
-			client_stats.toJson(),
-			server_stats.toJson()
-		);
-	});
-
-	function watch_compiler(type) {
-		const compiler = compilers[type];
-
-		compiler.plugin('invalid', filename => {
-			console.log(chalk.cyan(`${type} bundle invalidated, file changed: ${chalk.bold(filename)}`));
-			deferreds[type] = deferred();
-			watcher.ready = invalidate();
-		});
-
-		compiler.plugin('failed', err => {
-			deferreds[type].reject(err);
-		});
-
-		return compiler.watch({}, (err, stats) => {
-			if (stats.hasErrors()) {
-				deferreds[type].reject(stats.toJson().errors[0]);
-			} else {
-				deferreds[type].fulfil(stats);
-			}
-		});
-	}
-
-	const watcher = {
-		ready: invalidate(),
-		client: watch_compiler('client'),
-		server: watch_compiler('server'),
-
-		close: () => {
-			watcher.client.close();
-			watcher.server.close();
-		}
-	};
-
-	return watcher;
-};
--- a/lib/utils/generate_asset_cache.js
+++ b/lib/utils/generate_asset_cache.js
@@ -1,79 +0,0 @@
-const fs = require('fs');
-const path = require('path');
-const glob = require('glob');
-const templates = require('../templates.js');
-const route_manager = require('../route_manager.js');
-const { dest, dev } = require('../config.js');
-
-function ensure_array(thing) {
-	return Array.isArray(thing) ? thing : [thing]; // omg webpack what the HELL are you doing
-}
-
-module.exports = function generate_asset_cache(clientInfo, serverInfo) {
-	const main_file = `/client/${ensure_array(clientInfo.assetsByChunkName.main)[0]}`;
-
-	const chunk_files = clientInfo.assets.map(chunk => `/client/${chunk.name}`);
-
-	const service_worker = generate_service_worker(chunk_files);
-	const index = generate_index(main_file);
-
-	if (dev) {
-		fs.writeFileSync(path.join(dest, 'service-worker.js'), service_worker);
-		fs.writeFileSync(path.join(dest, 'index.html'), index);
-	}
-
-	return {
-		client: {
-			main_file,
-			chunk_files,
-
-			main: read(`${dest}${main_file}`),
-			chunks: chunk_files.reduce((lookup, file) => {
-				lookup[file] = read(`${dest}${file}`);
-				return lookup;
-			}, {}),
-
-			routes: route_manager.routes.reduce((lookup, route) => {
-				lookup[route.id] = `/client/${ensure_array(clientInfo.assetsByChunkName[route.id])[0]}`;
-				return lookup;
-			}, {}),
-
-			index,
-			service_worker
-		},
-
-		server: {
-			entry: path.resolve(dest, 'server', serverInfo.assetsByChunkName.main)
-		}
-	};
-};
-
-function generate_service_worker(chunk_files) {
-	const assets = glob.sync('**', { cwd: 'assets', nodir: true });
-
-	const route_code = `[${
-		route_manager.routes
-			.filter(route => route.type === 'page')
-			.map(route => `{ pattern: ${route.pattern} }`)
-			.join(', ')
-	}]`;
-
-	return read('templates/service-worker.js')
-		.replace('__timestamp__', Date.now())
-		.replace('__assets__', JSON.stringify(assets))
-		.replace('__shell__', JSON.stringify(chunk_files.concat('/index.html')))
-		.replace('__routes__', route_code);
-}
-
-function generate_index(main_file) {
-	return templates.render(200, {
-		styles: '',
-		head: '',
-		html: '<noscript>Please enable JavaScript!</noscript>',
-		main: main_file
-	});
-}
-
-function read(file) {
-	return fs.readFileSync(file, 'utf-8');
-}
--- a/mocha.opts
+++ b/mocha.opts
@@ -1,3 +1,4 @@
+--require source-map-support/register
 --recursive
 test/unit/**/*.js
 test/common/test.js
--- a/package-lock.json
+++ b/package-lock.json
--- a/package.json
+++ b/package.json
@@ -1,43 +1,79 @@
 {
  "name": "sapper",
-  "version": "0.2.9",
+  "version": "0.7.3",
  "description": "Military-grade apps, engineered by Svelte",
-  "main": "lib/index.js",
+  "main": "middleware.js",
  "bin": {
-    "sapper": "cli/index.js"
+    "sapper": "cli.js"
  },
+  "files": [
+    "cli.js",
+    "core.js",
+    "middleware.js",
+    "runtime",
+    "runtime.js",
+    "hmr-client.js",
+    "webpack"
+  ],
  "directories": {
    "test": "test"
  },
  "dependencies": {
    "chalk": "^2.3.0",
+    "cheerio": "^1.0.0-rc.2",
    "chokidar": "^1.7.0",
+    "code-frame": "^5.0.0",
    "escape-html": "^1.0.3",
+    "express": "^4.16.2",
+    "get-port": "^3.2.0",
+    "glob": "^7.1.2",
+    "locate-character": "^2.0.5",
+    "mime": "^2.2.0",
    "mkdirp": "^0.5.1",
+    "mri": "^1.1.0",
+    "node-fetch": "^1.7.3",
    "relative": "^3.0.2",
    "require-relative": "^0.8.7",
    "rimraf": "^2.6.2",
-    "webpack": "^3.10.0",
-    "webpack-hot-middleware": "^2.21.0"
+    "sander": "^0.6.0",
+    "serialize-javascript": "^1.4.0",
+    "tslib": "^1.8.1",
+    "url-parse": "^1.2.0",
+    "wait-port": "^0.2.2",
+    "walk-sync": "^0.3.2",
+    "webpack": "^3.10.0"
  },
  "devDependencies": {
+    "@std/esm": "^0.19.7",
+    "@types/glob": "^5.0.34",
+    "@types/mkdirp": "^0.5.2",
+    "@types/rimraf": "^2.0.2",
+    "compression": "^1.7.1",
    "css-loader": "^0.28.7",
+    "electron": "^1.8.2",
    "eslint": "^4.13.1",
    "eslint-plugin-import": "^2.8.0",
-    "express": "^4.16.2",
-    "get-port": "^3.2.0",
    "mocha": "^4.0.1",
    "nightmare": "^2.10.0",
-    "node-fetch": "^1.7.3",
    "npm-run-all": "^4.1.2",
+    "rollup": "^0.53.0",
+    "rollup-plugin-json": "^2.3.0",
+    "rollup-plugin-string": "^2.0.2",
+    "rollup-plugin-typescript": "^0.8.1",
+    "source-map-support": "^0.5.2",
    "style-loader": "^0.19.1",
    "svelte": "^1.49.1",
    "svelte-loader": "^2.3.2",
-    "wait-on": "^2.0.2"
+    "ts-node": "^4.1.0",
+    "typescript": "^2.6.2"
  },
  "scripts": {
    "cy:open": "cypress open",
-    "test": "mocha --opts mocha.opts"
+    "test": "mocha --opts mocha.opts",
+    "pretest": "npm run build",
+    "build": "rollup -c",
+    "dev": "rollup -cw",
+    "prepublish": "npm test"
  },
  "repository": "https://github.com/sveltejs/sapper",
  "keywords": [
--- a/rollup.config.js
+++ b/rollup.config.js
@@ -0,0 +1,43 @@
+import typescript from 'rollup-plugin-typescript';
+import string from 'rollup-plugin-string';
+import json from 'rollup-plugin-json';
+import pkg from './package.json';
+
+const external = [].concat(
+	Object.keys(pkg.dependencies),
+	Object.keys(process.binding('natives')),
+	'sapper/core.js'
+);
+
+const paths = {
+	'sapper/core.js': './core.js'
+};
+
+const plugins = [
+	string({
+		include: '**/*.md'
+	}),
+	json(),
+	typescript({
+		typescript: require('typescript')
+	})
+];
+
+export default [
+	{ name: 'cli', banner: true },
+	{ name: 'core' },
+	{ name: 'middleware' },
+	{ name: 'runtime', format: 'es' },
+	{ name: 'webpack', file: 'webpack/config' }
+].map(obj => ({
+	input: `src/${obj.name}/index.ts`,
+	output: {
+		file: `${obj.file || obj.name}.js`,
+		format: obj.format || 'cjs',
+		banner: obj.banner && '#!/usr/bin/env node',
+		paths,
+		sourcemap: true
+	},
+	external,
+	plugins
+}));
--- a/runtime/README.md
+++ b/runtime/README.md
@@ -0,0 +1 @@
+This directory exists for legacy reasons and should be deleted before releasing version 1.
--- a/runtime/app.js
+++ b/runtime/app.js
@@ -1,204 +1,2 @@
-const detach = node => {
-	node.parentNode.removeChild(node);
-};
-
-export let component;
-let target;
-let routes;
-
-const history = typeof window !== 'undefined' ? window.history : {
-	pushState: () => {},
-	replaceState: () => {},
-};
-
-const scroll_history = {};
-let uid = 1;
-let cid;
-
-if ('scrollRestoration' in history) {
-	history.scrollRestoration = 'manual';
-}
-
-function select_route(url) {
-	if (url.origin !== window.location.origin) return null;
-
-	for (const route of routes) {
-		const match = route.pattern.exec(url.pathname);
-		if (match) {
-			const params = route.params(match);
-
-			const query = {};
-			for (const [key, value] of url.searchParams) query[key] = value || true;
-
-			return { route, data: { params, query } };
-		}
-	}
-}
-
-function render(Component, data, scroll) {
-	Promise.resolve(
-		Component.preload ? Component.preload(data) : {}
-	).then(preloaded => {
-		if (component) {
-			component.destroy();
-		} else {
-			// first load — remove SSR'd <head> contents
-			const start = document.querySelector('#sapper-head-start');
-			const end = document.querySelector('#sapper-head-end');
-
-			if (start && end) {
-				while (start.nextSibling !== end) detach(start.nextSibling);
-				detach(start);
-				detach(end);
-			}
-
-			// preload additional routes
-			routes.reduce((promise, route) => promise.then(route.load), Promise.resolve());
-		}
-
-		component = new Component({
-			target,
-			data: Object.assign(data, preloaded),
-			hydrate: !!component
-		});
-
-		if (scroll) {
-			window.scrollTo(scroll.x, scroll.y);
-		}
-	});
-}
-
-function navigate(url, id) {
-	const selected = select_route(url);
-	if (selected) {
-		if (id) {
-			// popstate or initial navigation
-			cid = id;
-		} else {
-			// clicked on a link. preserve scroll state
-			scroll_history[cid] = scroll_state();
-
-			id = cid = ++uid;
-			scroll_history[cid] = { x: 0, y: 0 };
-		}
-
-		selected.route.load().then(mod => {
-			render(mod.default, selected.data, scroll_history[id]);
-		});
-
-		cid = id;
-		return true;
-	}
-}
-
-function handle_click(event) {
-	// Adapted from https://github.com/visionmedia/page.js
-	// MIT license https://github.com/visionmedia/page.js#license
-	if (which(event) !== 1) return;
-	if (event.metaKey || event.ctrlKey || event.shiftKey) return;
-	if (event.defaultPrevented) return;
-
-	const a = findAnchor(event.target);
-	if (!a) return;
-
-	// check if link is inside an svg
-	// in this case, both href and target are always inside an object
-	const svg = typeof a.href === 'object' && a.href.constructor.name === 'SVGAnimatedString';
-	const href = svg ? a.href.baseVal : a.href;
-
-	if (href === window.location.href) {
-		event.preventDefault();
-		return;
-	}
-
-	// Ignore if tag has
-	// 1. 'download' attribute
-	// 2. rel='external' attribute
-	if (a.hasAttribute('download') || a.getAttribute('rel') === 'external') return;
-
-	// Ignore if <a> has a target
-	if (svg ? a.target.baseVal : a.target) return;
-
-	const url = new URL(href);
-
-	// Don't handle hash changes
-	if (url.pathname === window.location.pathname && url.search === window.location.search) return;
-
-	if (navigate(url, null)) {
-		event.preventDefault();
-		history.pushState({ id: cid }, '', url.href);
-	}
-}
-
-function handle_popstate(event) {
-	scroll_history[cid] = scroll_state();
-
-	if (event.state) {
-		navigate(new URL(window.location), event.state.id);
-	} else {
-		// hashchange
-		cid = ++uid;
-		history.replaceState({ id: cid }, '', window.location.href);
-	}
-}
-
-function prefetch(event) {
-	const a = findAnchor(event.target);
-	if (!a || a.rel !== 'prefetch') return;
-
-	const selected = select_route(new URL(a.href));
-
-	if (selected) {
-		selected.route.load().then(mod => {
-			if (mod.default.preload) mod.default.preload(selected.data);
-		});
-	}
-}
-
-function findAnchor(node) {
-	while (node && node.nodeName.toUpperCase() !== 'A') node = node.parentNode; // SVG <a> elements have a lowercase name
-	return node;
-}
-
-let inited;
-
-export function init(_target, _routes) {
-	target = _target;
-	routes = _routes;
-
-	if (!inited) { // this check makes HMR possible
-		window.addEventListener('click', handle_click);
-		window.addEventListener('popstate', handle_popstate);
-
-		// prefetch
-		window.addEventListener('touchstart', prefetch);
-		window.addEventListener('mouseover', prefetch);
-
-		inited = true;
-	}
-
-	scroll_history[uid] = scroll_state();
-
-	history.replaceState({ id: uid }, '', window.location.href);
-	navigate(new URL(window.location), uid);
-}
-
-function which(event) {
-	event = event || window.event;
-	return event.which === null ? event.button : event.which;
-}
-
-function scroll_state() {
-	return {
-		x: window.scrollX,
-		y: window.scrollY
-	};
-}
-
-export function goto(href, opts = {}) {
-	if (navigate(new URL(href, window.location.href))) {
-		if (history) history[opts.replaceState ? 'replaceState' : 'pushState']({ id: cid }, '', href);
-	} else {
-		window.location.href = href;
-	}
-}
+console.error('sapper/runtime/app.js has been deprecated in favour of sapper/runtime.js');
+export * from '../runtime.js';
--- a/src/cli/build.ts
+++ b/src/cli/build.ts
@@ -0,0 +1,57 @@
+import * as fs from 'fs';
+import * as path from 'path';
+import mkdirp from 'mkdirp';
+import rimraf from 'rimraf';
+import { create_compilers, create_app, create_routes, create_serviceworker } from 'sapper/core.js';
+
+export default async function build({ src, dest, dev, entry }: {
+	src: string;
+	dest: string;
+	dev: boolean;
+	entry: { client: string, server: string }
+}) {
+	mkdirp.sync(dest);
+	rimraf.sync(path.join(dest, '**/*'));
+
+	const routes = create_routes({ src });
+
+	// create app/manifest/client.js and app/manifest/server.js
+	create_app({ routes, src, dev });
+
+	const { client, server, serviceworker } = create_compilers();
+
+	const client_stats = await compile(client);
+	fs.writeFileSync(path.join(dest, 'client_info.json'), JSON.stringify(client_stats.toJson()));
+
+	await compile(server);
+
+	if (serviceworker) {
+		create_serviceworker({
+			routes,
+			client_files: client_stats.toJson().assets.map((chunk: { name: string }) => `/client/${chunk.name}`),
+			src
+		});
+
+		await compile(serviceworker);
+	}
+}
+
+function compile(compiler: any) {
+	return new Promise((fulfil, reject) => {
+		compiler.run((err: Error, stats: any) => {
+			if (err) {
+				reject(err);
+				process.exit(1);
+			}
+
+			if (stats.hasErrors()) {
+				console.error(stats.toString({ colors: true }));
+				reject(new Error(`Encountered errors while building app`));
+			}
+
+			else {
+				fulfil(stats);
+			}
+		});
+	});
+}
--- a/src/cli/dev.ts
+++ b/src/cli/dev.ts
@@ -0,0 +1,229 @@
+import * as fs from 'fs';
+import * as path from 'path';
+import * as net from 'net';
+import * as chalk from 'chalk';
+import * as child_process from 'child_process';
+import * as http from 'http';
+import mkdirp from 'mkdirp';
+import rimraf from 'rimraf';
+import { wait_for_port } from './utils';
+import { create_compilers, create_app, create_routes, create_serviceworker, create_template } from 'sapper/core.js';
+
+type Deferred = {
+	promise?: Promise<any>;
+	fulfil?: (value?: any) => void;
+	reject?: (err: Error) => void;
+}
+
+function deferred() {
+	const d: Deferred = {};
+
+	d.promise = new Promise((fulfil, reject) => {
+		d.fulfil = fulfil;
+		d.reject = reject;
+	});
+
+	return d;
+}
+
+function create_hot_update_server(port: number, interval = 10000) {
+	const clients = new Set();
+
+	const server = http.createServer((req, res) => {
+		if (req.url !== '/hmr') return;
+
+		req.socket.setKeepAlive(true);
+		res.writeHead(200, {
+			'Access-Control-Allow-Origin': '*',
+			'Content-Type': 'text/event-stream;charset=utf-8',
+			'Cache-Control': 'no-cache, no-transform',
+			'Connection': 'keep-alive',
+			// While behind nginx, event stream should not be buffered:
+			// http://nginx.org/docs/http/ngx_http_proxy_module.html#proxy_buffering
+			'X-Accel-Buffering': 'no'
+		});
+
+		res.write('\n');
+
+		clients.add(res);
+		req.on('close', () => {
+			clients.delete(res);
+		});
+	});
+
+	server.listen(port);
+
+	function send(data: any) {
+		clients.forEach(client => {
+			client.write(`data: ${JSON.stringify(data)}\n\n`);
+		});
+	}
+
+	setInterval(() => {
+		send(null)
+	}, interval);
+
+	return { send };
+}
+
+export default async function dev(src: string, dir: string) {
+	rimraf.sync(dir);
+	mkdirp.sync(dir);
+
+	const chokidar = require('chokidar');
+
+	// initial build
+	const dev_port = await require('get-port')(10000);
+
+	const routes = create_routes({ src });
+	create_app({ routes, src, dev: true, dev_port });
+
+	const hot_update_server = create_hot_update_server(dev_port);
+
+	// TODO watch the configs themselves?
+	const compilers = create_compilers();
+
+	function watch_files(pattern: string, callback: () => void) {
+		const watcher = chokidar.watch(pattern, {
+			persistent: false
+		});
+
+		watcher.on('add', callback);
+		watcher.on('change', callback);
+		watcher.on('unlink', callback);
+	}
+
+	watch_files('routes/**/*.+(html|js|mjs)', () => {
+		const routes = create_routes({ src });
+		create_app({ routes, src, dev: true, dev_port });
+	});
+
+	watch_files('app/template.html', () => {
+		const template = create_template();
+		// TODO reload current page?
+	});
+
+	let proc: child_process.ChildProcess;
+
+	const deferreds = {
+		server: deferred(),
+		client: deferred()
+	};
+
+	const times = {
+		client_start: Date.now(),
+		server_start: Date.now(),
+		serviceworker_start: Date.now()
+	};
+
+	compilers.server.plugin('invalid', () => {
+		times.server_start = Date.now();
+		// TODO print message
+		deferreds.server = deferred();
+	});
+
+	compilers.server.watch({}, (err: Error, stats: any) => {
+		if (err) {
+			console.error(chalk.red(err.message));
+		} else if (stats.hasErrors()) {
+			// print errors. TODO notify client
+			stats.toJson().errors.forEach((error: Error) => {
+				console.error(error); // TODO make this look nice
+			});
+		} else {
+			console.log(`built server in ${Date.now() - times.server_start}ms`); // TODO prettify
+
+			const server_info = stats.toJson();
+			fs.writeFileSync(path.join(dir, 'server_info.json'), JSON.stringify(server_info, null, '  '));
+
+			deferreds.client.promise.then(() => {
+				function restart() {
+					wait_for_port(3000, deferreds.server.fulfil); // TODO control port
+				}
+
+				if (proc) {
+					proc.kill();
+					proc.on('exit', restart);
+				} else {
+					restart();
+				}
+
+				proc = child_process.fork(`${dir}/server.js`, [], {
+					cwd: process.cwd(),
+					env: Object.assign({}, process.env)
+				});
+			});
+		}
+	});
+
+	compilers.client.plugin('invalid', (filename: string) => {
+		times.client_start = Date.now();
+
+		deferreds.client = deferred();
+
+		// TODO we should delete old assets. due to a webpack bug
+		// i don't even begin to comprehend, this is apparently
+		// quite difficult
+	});
+
+	compilers.client.watch({}, (err: Error, stats: any) => {
+		if (err) {
+			console.error(chalk.red(err.message));
+		} else if (stats.hasErrors()) {
+			// print errors. TODO notify client
+			stats.toJson().errors.forEach((error: Error) => {
+				console.error(error); // TODO make this look nice
+			});
+		} else {
+			console.log(`built client in ${Date.now() - times.client_start}ms`); // TODO prettify
+
+			const client_info = stats.toJson();
+			fs.writeFileSync(path.join(dir, 'client_info.json'), JSON.stringify(client_info, null, '  '));
+			deferreds.client.fulfil();
+
+			const client_files = client_info.assets.map((chunk: { name: string }) => `/client/${chunk.name}`);
+
+			deferreds.server.promise.then(() => {
+				hot_update_server.send({
+					status: 'completed'
+				});
+			});
+
+			create_serviceworker({
+				routes: create_routes({ src }),
+				client_files,
+				src
+			});
+
+			watch_serviceworker();
+		}
+	});
+
+	let watch_serviceworker = compilers.serviceworker
+		? function() {
+			watch_serviceworker = noop;
+
+			compilers.serviceworker.plugin('invalid', (filename: string) => {
+				times.serviceworker_start = Date.now();
+			});
+
+			compilers.serviceworker.watch({}, (err: Error, stats: any) => {
+				if (err) {
+					// TODO notify client
+				} else if (stats.hasErrors()) {
+					// print errors. TODO notify client
+					stats.toJson().errors.forEach((error: Error) => {
+						console.error(error); // TODO make this look nice
+					});
+				} else {
+					console.log(`built service worker in ${Date.now() - times.serviceworker_start}ms`); // TODO prettify
+
+					const serviceworker_info = stats.toJson();
+					fs.writeFileSync(path.join(dir, 'serviceworker_info.json'), JSON.stringify(serviceworker_info, null, '  '));
+				}
+			});
+		}
+		: noop;
+}
+
+function noop() {}
--- a/src/cli/export.ts
+++ b/src/cli/export.ts
@@ -0,0 +1,91 @@
+import * as child_process from 'child_process';
+import * as path from 'path';
+import * as sander from 'sander';
+import express from 'express';
+import cheerio from 'cheerio';
+import URL from 'url-parse';
+import fetch from 'node-fetch';
+import { wait_for_port } from './utils';
+
+const { OUTPUT_DIR = 'dist' } = process.env;
+
+const app = express();
+
+function read_json(file: string) {
+	return JSON.parse(sander.readFileSync(file, { encoding: 'utf-8' }));
+}
+
+export default async function exporter(dir: string) { // dir === '.sapper'
+	// Prep output directory
+	sander.rimrafSync(OUTPUT_DIR);
+
+	sander.copydirSync('assets').to(OUTPUT_DIR);
+	sander.copydirSync(dir, 'client').to(OUTPUT_DIR, 'client');
+	sander.copyFileSync(dir, 'service-worker.js').to(OUTPUT_DIR, 'service-worker.js');
+
+	const port = await require('get-port')(3000);
+
+	const origin = `http://localhost:${port}`;
+
+	const proc = child_process.fork(path.resolve(`${dir}/server.js`), [], {
+		cwd: process.cwd(),
+		env: {
+			PORT: port,
+			NODE_ENV: 'production',
+			SAPPER_EXPORT: 'true'
+		}
+	});
+
+	const seen = new Set();
+	const saved = new Set();
+
+	proc.on('message', message => {
+		if (!message.__sapper__) return;
+
+		const url = new URL(message.url, origin);
+
+		if (saved.has(url.pathname)) return;
+		saved.add(url.pathname);
+
+		if (message.type === 'text/html') {
+			const dest = `${OUTPUT_DIR}/${url.pathname}/index.html`;
+			sander.writeFileSync(dest, message.body);
+		} else {
+			const dest = `${OUTPUT_DIR}/${url.pathname}`;
+			sander.writeFileSync(dest, message.body);
+		}
+	});
+
+	function handle(url: URL) {
+		if (url.origin !== origin) return;
+
+		if (seen.has(url.pathname)) return;
+		seen.add(url.pathname);
+
+		return fetch(url.href)
+			.then(r => {
+				if (r.headers.get('Content-Type') === 'text/html') {
+					return r.text().then((body: string) => {
+						const $ = cheerio.load(body);
+						const hrefs: string[] = [];
+
+						$('a[href]').each((i: number, $a) => {
+							hrefs.push($a.attribs.href);
+						});
+
+						return hrefs.reduce((promise, href) => {
+							return promise.then(() => handle(new URL(href, url.href)));
+						}, Promise.resolve());
+					});
+				}
+			})
+			.catch((err: Error) => {
+				console.error(`Error rendering ${url.pathname}: ${err.message}`);
+			});
+	}
+
+	wait_for_port(port, () => {
+		handle(new URL(origin)) // TODO all static routes
+			.then(() => proc.kill())
+	});
+}
--- a/src/cli/help.md
+++ b/src/cli/help.md
@@ -0,0 +1,20 @@
+# sapper v<@version@>
+
+https://sapper.svelte.technology
+
+> sapper dev
+
+Start a development server
+
+> sapper build
+
+Creates a production-ready version of your app
+
+> sapper export
+
+If possible, exports your app as static files, suitable for hosting on
+services like Netlify or Surge
+
+> sapper --help
+
+Shows this message
--- a/src/cli/index.ts
+++ b/src/cli/index.ts
@@ -0,0 +1,57 @@
+import mri from 'mri';
+import chalk from 'chalk';
+import help from './help.md';
+import build from './build';
+import exporter from './export';
+import dev from './dev';
+import upgrade from './upgrade';
+import { dest, entry, src } from '../config';
+import * as pkg from '../../package.json';
+
+const opts = mri(process.argv.slice(2), {
+	alias: {
+		h: 'help'
+	}
+});
+
+if (opts.help) {
+	const rendered = help
+		.replace('<@version@>', pkg.version)
+		.replace(/^(.+)/gm, (m: string, $1: string) => /[#>]/.test(m) ? $1 : `  ${$1}`)
+		.replace(/^# (.+)/gm, (m: string, $1: string) => chalk.bold.underline($1))
+		.replace(/^> (.+)/gm, (m: string, $1: string) => chalk.cyan($1));
+
+	console.log(`\n${rendered}\n`);
+	process.exit(0);
+}
+
+const [cmd] = opts._;
+
+const start = Date.now();
+
+if (cmd === 'build') {
+	build({ dest, dev: false, entry, src })
+		.then(() => {
+			const elapsed = Date.now() - start;
+			console.error(`built in ${elapsed}ms`); // TODO beautify this, e.g. 'built in 4.7 seconds'
+		})
+		.catch(err => {
+			console.error(err ? err.details || err.stack || err.message || err : 'Unknown error');
+		});
+} else if (cmd === 'export') {
+	build({ dest, dev: false, entry, src })
+		.then(() => exporter(dest))
+		.then(() => {
+			const elapsed = Date.now() - start;
+			console.error(`extracted in ${elapsed}ms`); // TODO beautify this, e.g. 'built in 4.7 seconds'
+		})
+		.catch(err => {
+			console.error(err ? err.details || err.stack || err.message || err : 'Unknown error');
+		});
+} else if (cmd === 'dev') {
+	dev(src, dest);
+} else if (cmd === 'upgrade') {
+	upgrade();
+} else {
+	console.log(`unrecognized command ${cmd} — try \`sapper --help\` for more information`);
+}
--- a/src/cli/upgrade.ts
+++ b/src/cli/upgrade.ts
@@ -0,0 +1,53 @@
+import * as fs from 'fs';
+import chalk from 'chalk';
+
+export default async function upgrade() {
+	const upgraded = [
+		await upgrade_sapper_main()
+	].filter(Boolean);
+
+	if (upgraded.length === 0) {
+		console.log(`No changes!`);
+	}
+}
+
+async function upgrade_sapper_main() {
+	const _2xx = read('templates/2xx.html');
+	const _4xx = read('templates/4xx.html');
+	const _5xx = read('templates/5xx.html');
+
+	const pattern = /<script src='\%sapper\.main\%'><\/script>/;
+
+	let replaced = false;
+
+	['2xx', '4xx', '5xx'].forEach(code => {
+		const file = `templates/${code}.html`
+		const template = read(file);
+		if (!template) return;
+
+		if (/\%sapper\.main\%/.test(template)) {
+			if (!pattern.test(template)) {
+				console.log(chalk.red(`Could not replace %sapper.main% in ${file}`));
+			} else {
+				write(file, template.replace(pattern, `%sapper.scripts%`));
+				console.log(chalk.green(`Replaced %sapper.main% in ${file}`));
+				replaced = true;
+			}
+		}
+	});
+
+	return replaced;
+}
+
+function read(file: string) {
+	try {
+		return fs.readFileSync(file, 'utf-8');
+	} catch (err) {
+		console.error(err);
+		return null;
+	}
+}
+
+function write(file: string, data: string) {
+	fs.writeFileSync(file, data);
+}
--- a/src/cli/utils.ts
+++ b/src/cli/utils.ts
@@ -0,0 +1,24 @@
+import waitPort from 'wait-port';
+
+export function wait_for_port(port: number, cb: () => void) {
+	waitPort({ port }).then(cb);
+}
+
+// import * as net from 'net';
+
+// export function wait_for_port(port: number, cb: () => void) {
+// 	const socket = net.createConnection(port, 'localhost', () => {
+// 		cb();
+// 		socket.destroy();
+// 	});
+
+// 	socket.on('error', err => {
+// 		setTimeout(() => {
+// 			wait_for_port(port, cb);
+// 		}, 100);
+// 	});
+
+// 	setTimeout(() => {
+// 		socket.destroy();
+// 	}, 100);
+// }
--- a/src/config.ts
+++ b/src/config.ts
@@ -0,0 +1,12 @@
+import * as path from 'path';
+
+export const isDev = () => process.env.NODE_ENV !== 'production';
+
+export const templates = path.resolve(process.env.SAPPER_TEMPLATES || 'templates');
+export const src = path.resolve(process.env.SAPPER_ROUTES || 'routes');
+export const dest = path.resolve(process.env.SAPPER_DEST || '.sapper');
+
+export const entry = {
+	client: path.resolve(templates, '.main.rendered.js'),
+	server: path.resolve(dest, 'server-entry.js')
+};
--- a/src/core/create_app.ts
+++ b/src/core/create_app.ts
@@ -0,0 +1,91 @@
+import * as fs from 'fs';
+import * as path from 'path';
+import mkdirp from 'mkdirp';
+import create_routes from './create_routes';
+import { fudge_mtime, posixify, write } from './utils';
+import { Route } from '../interfaces';
+
+export default function create_app({ routes, src, dev, dev_port }: {
+	routes: Route[];
+	src: string;
+	dev: boolean;
+	dev_port: number;
+}) {
+	mkdirp.sync('app/manifest');
+
+	write('app/manifest/client.js', generate_client(routes, src, dev, dev_port));
+	write('app/manifest/server.js', generate_server(routes, src));
+}
+
+function generate_client(routes: Route[], src: string, dev: boolean, dev_port?: number) {
+	let code = `
+		// This file is generated by Sapper — do not edit it!
+		export const routes = [
+			${routes
+				.filter(route => route.type === 'page')
+				.map(route => {
+					const file = posixify(`../../routes/${route.file}`);
+
+					if (route.id === '_4xx' || route.id === '_5xx') {
+						return `{ error: '${route.id.slice(1)}', load: () => import(/* webpackChunkName: "${route.id}" */ '${file}') }`;
+					}
+
+					const params = route.dynamic.length === 0
+						? '{}'
+						: `{ ${route.dynamic.map((part, i) => `${part}: match[${i + 1}]`).join(', ')} }`;
+
+					return `{ pattern: ${route.pattern}, params: ${route.dynamic.length > 0 ? `match` : `()`} => (${params}), load: () => import(/* webpackChunkName: "${route.id}" */ '${file}') }`;
+				})
+				.join(',\n\t')}
+		];`.replace(/^\t\t/gm, '').trim();
+
+	if (dev) {
+		const hmr_client = posixify(
+			path.resolve(__dirname, 'hmr-client.js')
+		);
+
+		code += `
+
+			if (module.hot) {
+				import('${hmr_client}').then(client => {
+					client.connect(${dev_port});
+				});
+			}`.replace(/^\t{3}/gm, '');
+	}
+
+	return code;
+}
+
+function generate_server(routes: Route[], src: string) {
+	let code = `
+		// This file is generated by Sapper — do not edit it!
+		${routes
+			.map(route => {
+				const file = posixify(`../../routes/${route.file}`);
+				return route.type === 'page'
+					? `import ${route.id} from '${file}';`
+					: `import * as ${route.id} from '${file}';`;
+			})
+			.join('\n')}
+
+		export const routes = [
+			${routes
+				.map(route => {
+					const file = posixify(`${src}/${route.file}`);
+
+					if (route.id === '_4xx' || route.id === '_5xx') {
+						return `{ error: '${route.id.slice(1)}', module: ${route.id} }`;
+					}
+
+					const params = route.dynamic.length === 0
+						? '{}'
+						: `{ ${route.dynamic.map((part, i) => `${part}: match[${i + 1}]`).join(', ')} }`;
+
+					return `{ id: '${route.id}', type: '${route.type}', pattern: ${route.pattern}, params: ${route.dynamic.length > 0 ? `match` : `()`} => (${params}), module: ${route.id} }`;
+				})
+				.join(',\n\t')
+			}
+		];`.replace(/^\t\t/gm, '').trim();
+
+	return code;
+}
--- a/src/core/create_compilers.ts
+++ b/src/core/create_compilers.ts
@@ -0,0 +1,29 @@
+import * as path from 'path';
+import relative from 'require-relative';
+
+export default function create_compilers() {
+	const webpack = relative('webpack', process.cwd());
+
+	const serviceworker_config = try_require(path.resolve('webpack/service-worker.config.js'));
+
+	return {
+		client: webpack(
+			require(path.resolve('webpack/client.config.js'))
+		),
+
+		server: webpack(
+			require(path.resolve('webpack/server.config.js'))
+		),
+
+		serviceworker: serviceworker_config && webpack(serviceworker_config)
+	};
+}
+
+function try_require(specifier: string) {
+	try {
+		return require(specifier);
+	} catch (err) {
+		if (err.code === 'MODULE_NOT_FOUND') return null;
+		throw err;
+	}
+}
--- a/lib/utils/create_routes.js
+++ b/lib/utils/create_routes.js
@@ -1,8 +1,13 @@
-const path = require('path');
+import * as path from 'path';
+import glob from 'glob';
+import { Route } from '../interfaces';

-module.exports = function create_matchers(files) {
-	const routes = files
-		.map(file => {
+export default function create_routes({ src, files = glob.sync('**/*.+(html|js|mjs)', { cwd: src }) }: {
+	src: string;
+	files?: string[];
+}) {
+	const routes: Route[] = files
+		.map((file: string) => {
 			if (/(^|\/|\\)_/.test(file)) return;

 			const parts = file.replace(/\.(html|js|mjs)$/, '').split('/'); // glob output is always posix-style
@@ -16,17 +21,30 @@ module.exports = function create_matchers(files) {
 				.filter(part => part[0] === '[')
 				.map(part => part.slice(1, -1));

-			const pattern = new RegExp(
-				`^\\/${parts.map(p => p[0] === '[' ? '([^/]+)' : p).join('\\/')}$`
-			);
+			let pattern_string = '';
+			let i = parts.length;
+			let nested = true;
+			while (i--) {
+				const part = parts[i];
+				const dynamic = part[0] === '[';

-			const test = url => pattern.test(url);
+				if (dynamic) {
+					pattern_string = nested ? `(?:\\/([^/]+)${pattern_string})?` : `\\/([^/]+)${pattern_string}`;
+				} else {
+					nested = false;
+					pattern_string = `\\/${part}${pattern_string}`;
+				}
+			}

-			const exec = url => {
+			const pattern = new RegExp(`^${pattern_string}\\/?$`);
+
+			const test = (url: string) => pattern.test(url);
+
+			const exec = (url: string) => {
 				const match = pattern.exec(url);
 				if (!match) return;

-				const params = {};
+				const params: Record<string, string> = {};
 				dynamic.forEach((param, i) => {
 					params[param] = match[i + 1];
 				});
@@ -46,7 +64,7 @@ module.exports = function create_matchers(files) {
 			};
 		})
 		.filter(Boolean)
-		.sort((a, b) => {
+		.sort((a: Route, b: Route) => {
 			let same = true;

 			for (let i = 0; true; i += 1) {
@@ -58,14 +76,14 @@ module.exports = function create_matchers(files) {
 					return 0;
 				}

-				if (!a_part) return 1;
-				if (!b_part) return -1;
+				if (!a_part) return -1;
+				if (!b_part) return 1;

 				const a_is_dynamic = a_part[0] === '[';
 				const b_is_dynamic = b_part[0] === '[';

 				if (a_is_dynamic === b_is_dynamic) {
-					if (!a_is_dynamic) same = false;
+					if (!a_is_dynamic && a_part !== b_part) same = false;
 					continue;
 				}

@@ -74,4 +92,4 @@ module.exports = function create_matchers(files) {
 		});

 	return routes;
-};
+}
--- a/src/core/create_serviceworker.ts
+++ b/src/core/create_serviceworker.ts
@@ -0,0 +1,27 @@
+import * as fs from 'fs';
+import * as path from 'path';
+import glob from 'glob';
+import create_routes from './create_routes';
+import { fudge_mtime, posixify, write } from './utils';
+import { Route } from '../interfaces';
+
+export default function create_serviceworker({ routes, client_files, src }: {
+	routes: Route[];
+	client_files: string[];
+	src: string;
+}) {
+	const assets = glob.sync('**', { cwd: 'assets', nodir: true });
+
+	let code = `
+		// This file is generated by Sapper — do not edit it!
+		export const timestamp = ${Date.now()};
+
+		export const assets = [\n\t${assets.map((x: string) => `"${x}"`).join(',\n\t')}\n];
+
+		export const shell = [\n\t${client_files.map((x: string) => `"${x}"`).join(',\n\t')}\n];
+
+		export const routes = [\n\t${routes.filter((r: Route) => r.type === 'page' && !/^_[45]xx$/.test(r.id)).map((r: Route) => `{ pattern: ${r.pattern} }`).join(',\n\t')}\n];
+	`.replace(/^\t\t/gm, '').trim();
+
+	write('app/manifest/service-worker.js', code);
+}
--- a/src/core/create_template.ts
+++ b/src/core/create_template.ts
@@ -0,0 +1,39 @@
+import * as fs from 'fs';
+import chalk from 'chalk';
+import framer from 'code-frame';
+import { locate } from 'locate-character';
+
+function error(e: any) {
+	if (e.title) console.error(chalk.bold.red(e.title));
+	if (e.body) console.error(chalk.red(e.body));
+	if (e.url) console.error(chalk.cyan(e.url));
+	if (e.frame) console.error(chalk.grey(e.frame));
+
+	process.exit(1);
+}
+
+export default function create_templates() {
+	const template = fs.readFileSync(`app/template.html`, 'utf-8');
+
+	const index = template.indexOf('%sapper.main%');
+	if (index !== -1) {
+		// TODO remove this in a future version
+		const { line, column } = locate(template, index, { offsetLine: 1 });
+		const frame = framer(template, line, column);
+
+		error({
+			title: `app/template.html`,
+			body: `<script src='%sapper.main%'> is unsupported — use %sapper.scripts% (without the <script> tag) instead`,
+			url: 'https://github.com/sveltejs/sapper/issues/86',
+			frame
+		});
+	}
+
+	return {
+		render: (data: Record<string, string>) => {
+			return template.replace(/%sapper\.(\w+)%/g, (match, key) => {
+				return key in data ? data[key] : '';
+			});
+		}
+	};
+}
--- a/src/core/index.ts
+++ b/src/core/index.ts
@@ -0,0 +1,5 @@
+export { default as create_app } from './create_app';
+export { default as create_serviceworker } from './create_serviceworker';
+export { default as create_compilers } from './create_compilers';
+export { default as create_routes } from './create_routes';
+export { default as create_template } from './create_template';
--- a/src/core/utils.ts
+++ b/src/core/utils.ts
@@ -0,0 +1,20 @@
+import * as fs from 'fs';
+
+export function write(file: string, code: string) {
+	fs.writeFileSync(file, code);
+	fudge_mtime(file);
+}
+
+export function posixify(file: string) {
+	return file.replace(/[/\\]/g, '/');
+}
+
+export function fudge_mtime(file: string) {
+	// need to fudge the mtime so that webpack doesn't go doolally
+	const { atime, mtime } = fs.statSync(file);
+	fs.utimesSync(
+		file,
+		new Date(atime.getTime() - 999999),
+		new Date(mtime.getTime() - 999999)
+	);
+}
--- a/src/interfaces.ts
+++ b/src/interfaces.ts
@@ -0,0 +1,15 @@
+export type Route = {
+	id: string;
+	type: 'page' | 'route';
+	file: string;
+	pattern: RegExp;
+	test: (url: string) => boolean;
+	exec: (url: string) => Record<string, string>;
+	parts: string[];
+	dynamic: string[];
+};
+
+export type Template = {
+	render: (data: Record<string, string>) => string;
+	stream: (req, res, data: Record<string, string | Promise<string>>) => void;
+};
--- a/src/middleware/index.ts
+++ b/src/middleware/index.ts
@@ -0,0 +1,347 @@
+import * as fs from 'fs';
+import * as path from 'path';
+import { ClientRequest, ServerResponse } from 'http';
+// import * as mime from 'mime';
+import mkdirp from 'mkdirp';
+import rimraf from 'rimraf';
+import serialize from 'serialize-javascript';
+import escape_html from 'escape-html';
+import { create_routes, templates, create_compilers, create_template } from 'sapper/core.js';
+import { dest, entry, isDev, src } from '../config';
+import { Route, Template } from '../interfaces';
+
+const dev = isDev();
+
+type RouteObject = {
+	id: string;
+	type: 'page' | 'route';
+	pattern: RegExp;
+	params: (match: RegExpMatchArray) => Record<string, string>;
+	module: {
+		render: (data: any) => {
+			head: string;
+			css: { code: string, map: any };
+			html: string
+		},
+		preload: (data: any) => any | Promise<any>
+	};
+	error?: string;
+}
+
+type Handler = (req: Req, res: ServerResponse, next: () => void) => void;
+
+interface Req extends ClientRequest {
+	url: string;
+	method: string;
+	pathname: string;
+	params: Record<string, string>;
+}
+
+export default function middleware({ routes }: {
+	routes: RouteObject[]
+}) {
+	const client_info = JSON.parse(fs.readFileSync(path.join(dest, 'client_info.json'), 'utf-8'));
+
+	const template = create_template();
+
+	const shell = try_read(path.join(dest, 'index.html'));
+	const serviceworker = try_read(path.join(dest, 'service-worker.js'));
+
+	const middleware = compose_handlers([
+		(req: Req, res: ServerResponse, next: () => void) => {
+			req.pathname = req.url.replace(/\?.*/, '');
+			next();
+		},
+
+		shell && get_asset_handler({
+			pathname: '/index.html',
+			type: 'text/html',
+			cache: 'max-age=600',
+			body: shell
+		}),
+
+		serviceworker && get_asset_handler({
+			pathname: '/service-worker.js',
+			type: 'application/javascript',
+			cache: 'max-age=600',
+			body: serviceworker
+		}),
+
+		(req: Req, res: ServerResponse, next: () => void) => {
+			if (req.pathname.startsWith('/client/')) {
+				// const type = mime.getType(req.pathname);
+				const type = 'application/javascript'; // TODO might not be, if using e.g. CSS plugin
+
+				// TODO cache?
+				const rs = fs.createReadStream(path.join(dest, req.pathname.slice(1)));
+
+				rs.on('error', error => {
+					res.statusCode = 404;
+					res.end('not found');
+				});
+
+				res.setHeader('Content-Type', type);
+				res.setHeader('Cache-Control', 'max-age=31536000');
+				rs.pipe(res);
+			} else {
+				next();
+			}
+		},
+
+		get_route_handler(client_info.assetsByChunkName, routes, template)
+	].filter(Boolean));
+
+	return middleware;
+}
+
+function get_asset_handler({ pathname, type, cache, body }: {
+	pathname: string;
+	type: string;
+	cache: string;
+	body: string;
+}) {
+	return (req: Req, res: ServerResponse, next: () => void) => {
+		if (req.pathname !== pathname) return next();
+
+		res.setHeader('Content-Type', type);
+		res.setHeader('Cache-Control', cache);
+		res.end(body);
+	};
+}
+
+const resolved = Promise.resolve();
+
+function get_route_handler(chunks: Record<string, string>, routes: RouteObject[], template: Template) {
+	function handle_route(route: RouteObject, req: Req, res: ServerResponse) {
+		req.params = route.params(route.pattern.exec(req.pathname));
+
+		const mod = route.module;
+
+		if (route.type === 'page') {
+			res.setHeader('Content-Type', 'text/html');
+
+			// preload main.js and current route
+			// TODO detect other stuff we can preload? images, CSS, fonts?
+			const link = []
+				.concat(chunks.main, chunks[route.id])
+				.map(file => `</client/${file}>;rel="preload";as="script"`)
+				.join(', ');
+
+			res.setHeader('Link', link);
+
+			const data = { params: req.params, query: req.query };
+
+			let redirect: { statusCode: number, location: string };
+			let error: { statusCode: number, message: Error | string };
+
+			Promise.resolve(
+				mod.preload ? mod.preload.call({
+					redirect: (statusCode: number, location: string) => {
+						redirect = { statusCode, location };
+					},
+					error: (statusCode: number, message: Error | string) => {
+						error = { statusCode, message };
+					}
+				}, req) : {}
+			).catch(err => {
+				error = { statusCode: 500, message: err };
+			}).then(preloaded => {
+				if (redirect) {
+					res.statusCode = redirect.statusCode;
+					res.setHeader('Location', redirect.location);
+					res.end();
+
+					return;
+				}
+
+				if (error) {
+					handle_error(req, res, error.statusCode, error.message);
+					return;
+				}
+
+				const serialized = try_serialize(preloaded); // TODO bail on non-POJOs
+				Object.assign(data, preloaded);
+
+				const { html, head, css } = mod.render(data);
+
+				let scripts = []
+					.concat(chunks.main) // chunks main might be an array. it might not! thanks, webpack
+					.map(file => `<script src='/client/${file}'></script>`)
+					.join('');
+
+				scripts = `<script>__SAPPER__ = { preloaded: ${serialized} };</script>${scripts}`;
+
+				const page = template.render({
+					scripts,
+					html,
+					head: `<noscript id='sapper-head-start'></noscript>${head}<noscript id='sapper-head-end'></noscript>`,
+					styles: (css && css.code ? `<style>${css.code}</style>` : '')
+				});
+
+				res.end(page);
+
+				if (process.send) {
+					process.send({
+						__sapper__: true,
+						url: req.url,
+						method: req.method,
+						status: 200,
+						type: 'text/html',
+						body: page
+					});
+				}
+			});
+		}
+
+		else {
+			const method = req.method.toLowerCase();
+			// 'delete' cannot be exported from a module because it is a keyword,
+			// so check for 'del' instead
+			const method_export = method === 'delete' ? 'del' : method;
+			const handler = mod[method_export];
+			if (handler) {
+				if (process.env.SAPPER_EXPORT) {
+					const { write, end, setHeader } = res;
+					const chunks: any[] = [];
+					const headers: Record<string, string> = {};
+
+					// intercept data so that it can be exported
+					res.write = function(chunk: any) {
+						chunks.push(new Buffer(chunk));
+						write.apply(res, arguments);
+					};
+
+					res.setHeader = function(name: string, value: string) {
+						headers[name.toLowerCase()] = value;
+						setHeader.apply(res, arguments);
+					};
+
+					res.end = function(chunk?: any) {
+						if (chunk) chunks.push(new Buffer(chunk));
+						end.apply(res, arguments);
+
+						process.send({
+							__sapper__: true,
+							url: req.url,
+							method: req.method,
+							status: res.statusCode,
+							type: headers['content-type'],
+							body: Buffer.concat(chunks).toString()
+						});
+					};
+				}
+
+				handler(req, res, () => {
+					handle_not_found(req, res, 404, 'Not found');
+				});
+			} else {
+				// no matching handler for method — 404
+				handle_not_found(req, res, 404, 'Not found');
+			}
+		}
+	}
+
+	const not_found_route = routes.find((route: RouteObject) => route.error === '4xx');
+
+	function handle_not_found(req: Req, res: ServerResponse, statusCode: number, message: Error | string) {
+		res.statusCode = statusCode;
+		res.setHeader('Content-Type', 'text/html');
+
+		const error = message instanceof Error ? message : new Error(message);
+
+		const rendered = not_found_route ? not_found_route.module.render({
+			status: 404,
+			error
+		}) : { head: '', css: null, html: error.message };
+
+		const { head, css, html } = rendered;
+
+		res.end(template.render({
+			scripts: `<script src='/client/${chunks.main}'></script>`,
+			html,
+			head: `<noscript id='sapper-head-start'></noscript>${head}<noscript id='sapper-head-end'></noscript>`,
+			styles: (css && css.code ? `<style>${css.code}</style>` : '')
+		}));
+	}
+
+	const error_route = routes.find((route: RouteObject) => route.error === '5xx');
+
+	function handle_error(req: Req, res: ServerResponse, statusCode: number, message: Error | string) {
+		if (statusCode >= 400 && statusCode < 500) {
+			return handle_not_found(req, res, statusCode, message);
+		}
+
+		res.statusCode = statusCode;
+		res.setHeader('Content-Type', 'text/html');
+
+		const error = message instanceof Error ? message : new Error(message);
+
+		const rendered = error_route ? error_route.module.render({
+			status: 500,
+			error
+		}) : { head: '', css: null, html: `Internal server error: ${error.message}` };
+
+		const { head, css, html } = rendered;
+
+		res.end(template.render({
+			scripts: `<script src='/client/${chunks.main}'></script>`,
+			html,
+			head: `<noscript id='sapper-head-start'></noscript>${head}<noscript id='sapper-head-end'></noscript>`,
+			styles: (css && css.code ? `<style>${css.code}</style>` : '')
+		}));
+	}
+
+	return function find_route(req: Req, res: ServerResponse, next: () => void) {
+		const url = req.pathname;
+
+		try {
+			for (const route of routes) {
+				if (!route.error && route.pattern.test(url)) return handle_route(route, req, res);
+			}
+
+			handle_not_found(req, res, 404, 'Not found');
+		} catch (error) {
+			handle_error(req, res, 500, error);
+		}
+	};
+}
+
+function compose_handlers(handlers: Handler[]) {
+	return (req: Req, res: ServerResponse, next: () => void) => {
+		let i = 0;
+		function go() {
+			const handler = handlers[i];
+
+			if (handler) {
+				handler(req, res, () => {
+					i += 1;
+					go();
+				});
+			} else {
+				next();
+			}
+		}
+
+		go();
+	};
+}
+
+function read_json(file: string) {
+	return JSON.parse(fs.readFileSync(file, 'utf-8'));
+}
+
+function try_serialize(data: any) {
+	try {
+		return serialize(data);
+	} catch (err) {
+		return null;
+	}
+}
+
+function try_read(file: string) {
+	try {
+		return fs.readFileSync(file, 'utf-8');
+	} catch (err) {
+		return null;
+	}
+}
--- a/src/runtime/index.ts
+++ b/src/runtime/index.ts
@@ -0,0 +1,268 @@
+import { detach, findAnchor, scroll_state, which } from './utils';
+import { Component, ComponentConstructor, Params, Query, Route, RouteData, ScrollPosition, Target } from './interfaces';
+
+export let component: Component;
+let target: Node;
+let routes: Route[];
+let errors: { '4xx': Route, '5xx': Route };
+
+const history = typeof window !== 'undefined' ? window.history : {
+	pushState: (state: any, title: string, href: string) => {},
+	replaceState: (state: any, title: string, href: string) => {},
+	scrollRestoration: ''
+};
+
+const scroll_history: Record<string, ScrollPosition> = {};
+let uid = 1;
+let cid: number;
+
+if ('scrollRestoration' in history) {
+	history.scrollRestoration = 'manual';
+}
+
+function select_route(url: URL): Target {
+	if (url.origin !== window.location.origin) return null;
+
+	for (const route of routes) {
+		const match = route.pattern.exec(url.pathname);
+		if (match) {
+			const params = route.params(match);
+
+			const query: Record<string, string | true> = {};
+			if (url.search.length > 0) {
+				url.search.slice(1).split('&').forEach(searchParam => {
+					const [, key, value] = /([^=]+)=(.*)/.exec(searchParam);
+					query[key] = value || true;
+				})
+			}
+			return { url, route, data: { params, query } };
+		}
+	}
+}
+
+let current_token: {};
+
+function render(Component: ComponentConstructor, data: any, scroll: ScrollPosition, token: {}) {
+	if (current_token !== token) return;
+
+	if (component) {
+		component.destroy();
+	} else {
+		// first load — remove SSR'd <head> contents
+		const start = document.querySelector('#sapper-head-start');
+		const end = document.querySelector('#sapper-head-end');
+
+		if (start && end) {
+			while (start.nextSibling !== end) detach(start.nextSibling);
+			detach(start);
+			detach(end);
+		}
+
+		// preload additional routes
+		routes.reduce((promise: Promise<any>, route) => promise.then(route.load), Promise.resolve());
+	}
+
+	component = new Component({
+		target,
+		data,
+		hydrate: !component
+	});
+
+	if (scroll) {
+		window.scrollTo(scroll.x, scroll.y);
+	}
+}
+
+function prepare_route(Component: ComponentConstructor, data: RouteData) {
+	let redirect: { statusCode: number, location: string } = null;
+	let error: { statusCode: number, message: Error | string } = null;
+
+	if (!Component.preload) {
+		return { Component, data, redirect, error };
+	}
+
+	if (!component && window.__SAPPER__ && window.__SAPPER__.preloaded) {
+		return { Component, data: Object.assign(data, window.__SAPPER__.preloaded), redirect, error };
+	}
+
+	return Promise.resolve(Component.preload.call({
+		redirect: (statusCode: number, location: string) => {
+			redirect = { statusCode, location };
+		},
+		error: (statusCode: number, message: Error | string) => {
+			error = { statusCode, message };
+		}
+	}, data)).catch(err => {
+		error = { statusCode: 500, message: err };
+	}).then(preloaded => {
+		if (error) {
+			const route = error.statusCode >= 400 && error.statusCode < 500
+				? errors['4xx']
+				: errors['5xx'];
+
+			return route.load().then(({ default: Component }: { default: ComponentConstructor }) => {
+				const err = error.message instanceof Error ? error.message : new Error(error.message);
+				Object.assign(data, { status: error.statusCode, error: err });
+				return { Component, data, redirect: null };
+			});
+		}
+
+		Object.assign(data, preloaded)
+		return { Component, data, redirect };
+	});
+}
+
+function navigate(target: Target, id: number) {
+	if (id) {
+		// popstate or initial navigation
+		cid = id;
+	} else {
+		// clicked on a link. preserve scroll state
+		scroll_history[cid] = scroll_state();
+
+		id = cid = ++uid;
+		scroll_history[cid] = { x: 0, y: 0 };
+	}
+
+	cid = id;
+
+	const loaded = prefetching && prefetching.href === target.url.href ?
+		prefetching.promise :
+		target.route.load().then(mod => prepare_route(mod.default, target.data));
+
+	prefetching = null;
+
+	const token = current_token = {};
+
+	return loaded.then(({ Component, data, redirect }) => {
+		if (redirect) {
+			return goto(redirect.location, { replaceState: true });
+		}
+
+		render(Component, data, scroll_history[id], token);
+	});
+}
+
+function handle_click(event: MouseEvent) {
+	// Adapted from https://github.com/visionmedia/page.js
+	// MIT license https://github.com/visionmedia/page.js#license
+	if (which(event) !== 1) return;
+	if (event.metaKey || event.ctrlKey || event.shiftKey) return;
+	if (event.defaultPrevented) return;
+
+	const a: HTMLAnchorElement | SVGAElement = <HTMLAnchorElement | SVGAElement>findAnchor(<Node>event.target);
+	if (!a) return;
+
+	// check if link is inside an svg
+	// in this case, both href and target are always inside an object
+	const svg = typeof a.href === 'object' && a.href.constructor.name === 'SVGAnimatedString';
+	const href = String(svg ? (<SVGAElement>a).href.baseVal : a.href);
+
+	if (href === window.location.href) {
+		event.preventDefault();
+		return;
+	}
+
+	// Ignore if tag has
+	// 1. 'download' attribute
+	// 2. rel='external' attribute
+	if (a.hasAttribute('download') || a.getAttribute('rel') === 'external') return;
+
+	// Ignore if <a> has a target
+	if (svg ? (<SVGAElement>a).target.baseVal : a.target) return;
+
+	const url = new URL(href);
+
+	// Don't handle hash changes
+	if (url.pathname === window.location.pathname && url.search === window.location.search) return;
+
+	const target = select_route(url);
+	if (target) {
+		navigate(target, null);
+		event.preventDefault();
+		history.pushState({ id: cid }, '', url.href);
+	}
+}
+
+function handle_popstate(event: PopStateEvent) {
+	scroll_history[cid] = scroll_state();
+
+	if (event.state) {
+		const url = new URL(window.location.href);
+		const target = select_route(url);
+		navigate(target, event.state.id);
+	} else {
+		// hashchange
+		cid = ++uid;
+		history.replaceState({ id: cid }, '', window.location.href);
+	}
+}
+
+let prefetching: {
+	href: string;
+	promise: Promise<{ Component: ComponentConstructor, data: any }>;
+} = null;
+
+export function prefetch(href: string) {
+	const selected = select_route(new URL(href));
+
+	if (selected) {
+		prefetching = {
+			href,
+			promise: selected.route.load().then(mod => prepare_route(mod.default, selected.data))
+		};
+	}
+}
+
+function handle_touchstart_mouseover(event: MouseEvent | TouchEvent) {
+	const a: HTMLAnchorElement = <HTMLAnchorElement>findAnchor(<Node>event.target);
+	if (!a || a.rel !== 'prefetch') return;
+
+	prefetch(a.href);
+}
+
+let inited: boolean;
+
+export function init(_target: Node, _routes: Route[]) {
+	target = _target;
+	routes = _routes.filter(r => !r.error);
+	errors = {
+		'4xx': _routes.find(r => r.error === '4xx'),
+		'5xx': _routes.find(r => r.error === '5xx')
+	};
+
+	if (!inited) { // this check makes HMR possible
+		window.addEventListener('click', handle_click);
+		window.addEventListener('popstate', handle_popstate);
+
+		// prefetch
+		window.addEventListener('touchstart', handle_touchstart_mouseover);
+		window.addEventListener('mouseover', handle_touchstart_mouseover);
+
+		inited = true;
+	}
+
+	return Promise.resolve().then(() => {
+		const { hash, href } = window.location;
+
+		const deep_linked = hash && document.getElementById(hash.slice(1));
+		scroll_history[uid] = deep_linked ?
+			{ x: 0, y: deep_linked.getBoundingClientRect().top } :
+			scroll_state();
+
+		history.replaceState({ id: uid }, '', href);
+
+		const target = select_route(new URL(window.location.href));
+		return navigate(target, uid);
+	});
+}
+
+export function goto(href: string, opts = { replaceState: false }) {
+	const target = select_route(new URL(href, window.location.href));
+	if (target) {
+		navigate(target, null);
+		if (history) history[opts.replaceState ? 'replaceState' : 'pushState']({ id: cid }, '', href);
+	} else {
+		window.location.href = href;
+	}
+}
--- a/src/runtime/interfaces.ts
+++ b/src/runtime/interfaces.ts
@@ -0,0 +1,29 @@
+export type Params = Record<string, string>;
+export type Query = Record<string, string | true>;
+export type RouteData = { params: Params, query: Query };
+
+export interface ComponentConstructor {
+	new (options: { target: Node, data: any, hydrate: boolean }): Component;
+	preload: (data: { params: Params, query: Query }) => Promise<any>;
+};
+
+export interface Component {
+	destroy: () => void;
+}
+
+export type Route = {
+	pattern: RegExp;
+	params: (match: RegExpExecArray) => Record<string, string>;
+	load: () => Promise<{ default: ComponentConstructor }>
+};
+
+export type ScrollPosition = {
+	x: number;
+	y: number;
+};
+
+export type Target = {
+	url: URL;
+	route: Route;
+	data: RouteData;
+};
--- a/src/runtime/utils.ts
+++ b/src/runtime/utils.ts
@@ -0,0 +1,19 @@
+export function detach(node: Node) {
+	node.parentNode.removeChild(node);
+}
+
+export function findAnchor(node: Node) {
+	while (node && node.nodeName.toUpperCase() !== 'A') node = node.parentNode; // SVG <a> elements have a lowercase name
+	return node;
+}
+
+export function which(event: MouseEvent) {
+	return event.which === null ? event.button : event.which;
+}
+
+export function scroll_state() {
+	return {
+		x: window.scrollX,
+		y: window.scrollY
+	};
+}
--- a/src/webpack/index.ts
+++ b/src/webpack/index.ts
@@ -0,0 +1,44 @@
+import { dest, isDev, entry } from '../config';
+
+export default {
+	dev: isDev(),
+
+	client: {
+		entry: () => {
+			return {
+				main: [
+					'./app/client.js',
+					// workaround for https://github.com/webpack-contrib/extract-text-webpack-plugin/issues/456
+					'style-loader/lib/addStyles',
+					'css-loader/lib/css-base'
+				]
+			};
+		},
+
+		output: () => {
+			return {
+				path: `${dest}/client`,
+				filename: '[hash]/[name].js',
+				chunkFilename: '[hash]/[name].[id].js',
+				publicPath: '/client/'
+			};
+		}
+	},
+
+	server: {
+		entry: () => {
+			return {
+				server: './app/server.js'
+			};
+		},
+
+		output: () => {
+			return {
+				path: `${dest}`,
+				filename: '[name].js',
+				chunkFilename: '[hash]/[name].[id].js',
+				libraryTarget: 'commonjs2'
+			};
+		}
+	}
+};
--- a/test/app/.gitignore
+++ b/test/app/.gitignore
@@ -3,4 +3,5 @@ node_modules
 .sapper
 yarn.lock
 cypress/screenshots
-templates/.*
+templates/.*
+dist
--- a/test/app/app/client.js
+++ b/test/app/app/client.js
@@ -0,0 +1,6 @@
+import { init } from '../../../runtime.js';
+import { routes } from './manifest/client.js';
+
+window.init = () => {
+	return init(document.querySelector('#sapper'), routes);
+};
--- a/test/app/app/server.js
+++ b/test/app/app/server.js
@@ -0,0 +1,78 @@
+import fs from 'fs';
+import express from 'express';
+import compression from 'compression';
+import serve from 'serve-static';
+import sapper from '../../../middleware';
+import { routes } from './manifest/server.js';
+
+let count;
+let ended;
+
+process.on('message', message => {
+	if (message.action === 'start') {
+		count = 0;
+		ended = false;
+		process.send({ type: 'ready' });
+	}
+
+	if (message.action === 'end') {
+		ended = true;
+		if (count === 0) process.send({ type: 'done' });
+	}
+});
+
+const app = express();
+
+app.use((req, res, next) => {
+	count += 1;
+
+	const { write, end } = res;
+	const chunks = [];
+
+	res.write = function(chunk) {
+		chunks.push(new Buffer(chunk));
+		write.apply(res, arguments);
+	};
+
+	res.end = function(chunk) {
+		if (chunk) chunks.push(new Buffer(chunk));
+		end.apply(res, arguments);
+
+		count -= 1;
+
+		process.send({
+			method: req.method,
+			url: req.url,
+			status: res.statusCode,
+			headers: res._headers,
+			body: Buffer.concat(chunks).toString()
+		});
+
+		if (count === 0 && ended) {
+			process.send({ type: 'done' });
+		}
+	};
+
+	next();
+});
+
+const { PORT = 3000 } = process.env;
+
+// this allows us to do e.g. `fetch('/api/blog')` on the server
+const fetch = require('node-fetch');
+global.fetch = (url, opts) => {
+	if (url[0] === '/') url = `http://localhost:${PORT}${url}`;
+	return fetch(url, opts);
+};
+
+app.use(compression({ threshold: 0 }));
+
+app.use(serve('assets'));
+
+app.use(sapper({
+	routes
+}));
+
+app.listen(PORT, () => {
+	console.log(`listening on port ${PORT}`);
+});
--- a/test/app/templates/service-worker.js
+++ b/test/app/templates/service-worker.js
@@ -1,14 +1,12 @@
-const ASSETS = `cache__timestamp__`;
+import { assets, shell, timestamp, routes } from './manifest/service-worker.js';
+
+const ASSETS = `cachetimestamp`;

 // `shell` is an array of all the files generated by webpack,
 // `assets` is an array of everything in the `assets` directory
-const to_cache = __shell__.concat(__assets__);
+const to_cache = shell.concat(assets);
 const cached = new Set(to_cache);

-// `routes` is an array of `{ pattern: RegExp }` objects that
-// match the pages in your app
-const routes = __routes__;
-
 self.addEventListener('install', event => {
 	event.waitUntil(
 		caches
--- a/test/app/templates/2xx.html
+++ b/test/app/templates/2xx.html
@@ -32,6 +32,6 @@
 	<!-- Sapper creates a <script> tag containing `templates/main.js`
 	     and anything else it needs to hydrate the app and
 	     initialise the router -->
-	<script src='%sapper.main%'></script>
+	%sapper.scripts%
 </body>
 </html>
--- a/test/app/package-lock.json
+++ b/test/app/package-lock.json
@@ -2722,9 +2722,9 @@
      "integrity": "sha1-5WqpTEyAVaFkBKBnS3jyFffI4ZQ="
    },
    "marked": {
-      "version": "0.3.7",
-      "resolved": "https://registry.npmjs.org/marked/-/marked-0.3.7.tgz",
-      "integrity": "sha512-zBEP4qO1YQp5aXHt8S5wTiOv9i2X74V/LQL0zhUNvVaklt6Ywa6lChxIvS+ibYlCGgADwKwZFhjC3+XfpsvQvQ=="
+      "version": "0.3.9",
+      "resolved": "https://registry.npmjs.org/marked/-/marked-0.3.9.tgz",
+      "integrity": "sha512-nW5u0dxpXxHfkHzzrveY45gCbi+R4PaO4WRZYqZNl+vB0hVGeqlFn0aOg1c8AKL63TrNFn9Bm2UP4AdiZ9TPLw=="
    },
    "math-expression-evaluator": {
      "version": "1.2.17",
--- a/test/app/package.json
+++ b/test/app/package.json
@@ -15,7 +15,7 @@
    "express": "^4.16.2",
    "extract-text-webpack-plugin": "^3.0.2",
    "glob": "^7.1.2",
-    "marked": "^0.3.7",
+    "marked": "^0.3.9",
    "node-fetch": "^1.7.3",
    "npm-run-all": "^4.1.2",
    "serve-static": "^1.13.1",
--- a/test/app/routes/4xx.html
+++ b/test/app/routes/4xx.html
@@ -0,0 +1,18 @@
+<:Head>
+	<title>{{status}}</title>
+</:Head>
+
+<Layout page='home'>
+	<h1>Not found</h1>
+	<p>{{error.message}}</p>
+</Layout>
+
+<script>
+	import Layout from './_components/Layout.html';
+
+	export default {
+		components: {
+			Layout
+		}
+	};
+</script>
--- a/test/app/routes/5xx.html
+++ b/test/app/routes/5xx.html
@@ -0,0 +1,18 @@
+<:Head>
+	<title>Internal server error</title>
+</:Head>
+
+<Layout page='home'>
+	<h1>Internal server error</h1>
+	<p>{{error.message}}</p>
+</Layout>
+
+<script>
+	import Layout from './_components/Layout.html';
+
+	export default {
+		components: {
+			Layout
+		}
+	};
+</script>
--- a/test/app/routes/_components/Nav.html
+++ b/test/app/routes/_components/Nav.html
@@ -1,10 +1,11 @@
 <nav>
 	<ul>
-		<li><a class='{{page === "home"  ? "selected" : ""}}' href='/'>home</a></li>
-		<li><a class='{{page === "about"  ? "selected" : ""}}' href='/about'>about</a></li>
-
-		<!-- for the blog link, we're using rel=prefetch so that Sapper prefetches
-		     the blog data when we hover over the link or tap it on a touchscreen -->
+		<li><a href='/'>home</a></li>
+		<li><a href='/about'>about</a></li>
+		<li><a href='/slow-preload'>slow preload</a></li>
+		<li><a href='/redirect-from'>redirect</a></li>
+		<li><a href='/blog/nope'>broken link</a></li>
+		<li><a href='/blog/throw-an-error'>error link</a></li>
 		<li><a rel=prefetch class='{{page === "blog"  ? "selected" : ""}}' href='/blog'>blog</a></li>
 	</ul>
 </nav>
--- a/test/app/routes/about.html
+++ b/test/app/routes/about.html
@@ -7,12 +7,13 @@

 	<p>This is the 'about' page. There's not much here.</p>

-	<button on:click='goto("/blog/what-is-sapper")'>What is Sapper?</button>
+	<button class='goto' on:click='goto("/blog/what-is-sapper")'>What is Sapper?</button>
+	<button class='prefetch' on:click='goto("/blog/why-the-name")'>Why the name?</button>
 </Layout>

 <script>
 	import Layout from './_components/Layout.html';
-	import { goto } from '../../../runtime/app.js';
+	import { goto, prefetch } from '../../../runtime.js';

 	export default {
 		components: {
@@ -20,7 +21,8 @@
 		},

 		methods: {
-			goto
+			goto,
+			prefetch
 		}
 	};
 </script>
--- a/test/app/routes/api/blog/[slug].js
+++ b/test/app/routes/api/blog/[slug].js
@@ -13,7 +13,7 @@ export function get(req, res, next) {
 	if (slug in lookup) {
 		res.set({
 			'Content-Type': 'application/json',
-			'Cache-Control': `max-age=${30 * 60 * 1e3}` // cache for 30 minutes
+			'Cache-Control': `no-cache`
 		});

 		res.end(lookup[slug]);
--- a/test/app/routes/api/blog/_posts.js
+++ b/test/app/routes/api/blog/_posts.js
@@ -82,6 +82,30 @@ const posts = [
 		html: `
 			<p>We're so glad you asked! Come on over to the <a href='https://github.com/sveltejs/svelte'>Svelte</a> and <a href='https://github.com/sveltejs/sapper'>Sapper</a> repos, and join us in the <a href='https://gitter.im/sveltejs/svelte'>Gitter chatroom</a>. Everyone is welcome, especially you!</p>
 		`
+	},
+
+	{
+		title: 'A very long post with deep links',
+		slug: 'a-very-long-post',
+		html: `
+			<h2 id='one'>One</h2>
+			<p>I'll have a vodka rocks. (Mom, it's breakfast time.) And a piece of toast. Let me out that Queen. Fried cheese… with club sauce.</p>
+			<p>Her lawyers are claiming the seal is worth $250,000. And that's not even including Buster's Swatch. This was a big get for God. What, so the guy we are meeting with can't even grow his own hair? COME ON! She's always got to wedge herself in the middle of us so that she can control everything. Yeah. Mom's awesome. It's, like, Hey, you want to go down to the whirlpool? Yeah, I don't have a husband. I call it Swing City. The CIA should've just Googled for his hideout, evidently. There are dozens of us! DOZENS! Yeah, like I'm going to take a whiz through this $5,000 suit. COME ON.</p>
+
+			<h2 id='two'>Two</h2>
+			<p>Tobias Fünke costume. Heart attack never stopped old big bear.</p>
+			<p>Nellie is blowing them all AWAY. I will be a bigger and hairier mole than the one on your inner left thigh! I'll sacrifice anything for my children.</p>
+			<p>Up yours, granny! You couldn't handle it! Hey, Dad. Look at you. You're a year older…and a year closer to death. Buster: Oh yeah, I guess that's kind of funny. Bob Loblaw Law Blog. The guy runs a prison, he can have any piece of ass he wants.</p>
+
+			<h2 id='three'>Three</h2>
+			<p>I prematurely shot my wad on what was supposed to be a dry run, so now I'm afraid I have something of a mess on my hands. Dead Dove DO NOT EAT. Never once touched my per diem. I'd go to Craft Service, get some raw veggies, bacon, Cup-A-Soup…baby, I got a stew goin'. You're losing blood, aren't you? Gob: Probably, my socks are wet. Sure, let the little fruit do it. HUZZAH! Although George Michael had only got to second base, he'd gone in head first, like Pete Rose. I will pack your sweet pink mouth with so much ice cream you'll be the envy of every Jerry and Jane on the block!</p>
+			<p>Gosh Mom… after all these years, God's not going to take a call from you. Come on, this is a Bluth family celebration. It's no place for children.</p>
+			<p>And I wouldn't just lie there, if that's what you're thinking. That's not what I WAS thinking. Who? i just dont want him to point out my cracker ass in front of ann. When a man needs to prove to a woman that he's actually… When a man loves a woman… Heyyyyyy Uncle Father Oscar. [Stabbing Gob] White power! Gob: I'm white! Let me take off my assistant's skirt and put on my Barbra-Streisand-in-The-Prince-of-Tides ass-masking therapist pantsuit. In the mid '90s, Tobias formed a folk music band with Lindsay and Maebe which he called Dr. Funke's 100 Percent Natural Good Time Family Band Solution. The group was underwritten by the Natural Food Life Company, a division of Chem-Grow, an Allen Crayne acqusition, which was part of the Squimm Group. Their motto was simple: We keep you alive.</p>
+
+			<h2 id='four'>Four</h2>
+			<p>If you didn't have adult onset diabetes, I wouldn't mind giving you a little sugar. Everybody dance NOW. And the soup of the day is bread. Great, now I'm gonna smell to high heaven like a tuna melt!</p>
+			<p>That's how Tony Wonder lost a nut. She calls it a Mayonegg. Go ahead, touch the Cornballer. There's a new daddy in town. A discipline daddy.</p>
+		`
 	}
 ];

--- a/test/app/routes/api/blog/contents.js
+++ b/test/app/routes/api/blog/contents.js
--- a/test/app/routes/api/delete/[id].js
+++ b/test/app/routes/api/delete/[id].js
@@ -0,0 +1,9 @@
+export function del(req, res) {
+	res.set({
+		'Content-Type': 'application/json'
+	});
+
+	res.end(JSON.stringify({
+		id: req.params.id
+	}));
+}
--- a/test/app/routes/blog/[slug].html
+++ b/test/app/routes/blog/[slug].html
@@ -59,8 +59,21 @@
 			// is called [slug].html
 			const { slug } = params;

-			return fetch(`/api/blog/${slug}`).then(r => r.json()).then(post => {
-				return { post };
+			if (slug === 'throw-an-error') {
+				return this.error(500, 'something went wrong');
+			}
+
+			return fetch(`/api/blog/${slug}`).then(r => {
+				if (r.status === 200) {
+					return r.json().then(post => ({ post }));
+					this.error(r.status, '')
+				}
+
+				if (r.status === 404) {
+					this.error(404, 'Not found');
+				} else {
+					throw new Error('Something went wrong');
+				}
 			});
 		}
 	};
--- a/test/app/routes/blog/index.html
+++ b/test/app/routes/blog/index.html
@@ -32,7 +32,7 @@
 		},

 		preload({ params, query }) {
-			return fetch(`/api/blog`).then(r => r.json()).then(posts => {
+			return fetch(`/api/blog/contents`).then(r => r.json()).then(posts => {
 				return { posts };
 			});
 		}
--- a/test/app/routes/delete-test.html
+++ b/test/app/routes/delete-test.html
@@ -0,0 +1,15 @@
+<button class='del' on:click='del()'>delete</button>
+
+<script>
+	export default {
+		methods: {
+			del() {
+				fetch(`/api/delete/42`, { method: 'DELETE' })
+					.then(r => r.json())
+					.then(data => {
+						window.deleted = data;
+					});
+			}
+		}
+	};
+</script>
--- a/test/app/routes/index.html
+++ b/test/app/routes/index.html
@@ -6,13 +6,15 @@
 	<h1>Great success!</h1>

 	<figure>
-		<img src='/great-success.png'>
+		<img alt='borat' src='/great-success.png'>
 		<figcaption>HIGH FIVE!</figcaption>
 	</figure>

 	<p><strong>Try editing this file (routes/index.html) to test hot module reloading.</strong></p>
 </Layout>

+<div class='hydrate-test'></div>
+
 <style>
 	h1, figure, p {
 		text-align: center;
--- a/test/app/routes/redirect-from.html
+++ b/test/app/routes/redirect-from.html
@@ -0,0 +1,7 @@
+<script>
+	export default {
+		preload() {
+			this.redirect(301, '/redirect-to');
+		}
+	};
+</script>
--- a/test/app/routes/redirect-to.html
+++ b/test/app/routes/redirect-to.html
@@ -0,0 +1 @@
+<h1>redirected</h1>
--- a/test/app/routes/show-url.html
+++ b/test/app/routes/show-url.html
@@ -0,0 +1,9 @@
+<p>URL is {{url}}</p>
+
+<script>
+	export default {
+		preload({ url }) {
+			if (url) return { url };
+		}
+	};
+</script>
--- a/test/app/routes/slow-preload.html
+++ b/test/app/routes/slow-preload.html
@@ -0,0 +1,15 @@
+<h1>This page should never render</h1>
+
+<script>
+	export default {
+		preload() {
+			return new Promise(fulfil => {
+				if (typeof window !== 'undefined') {
+					window.fulfil = fulfil;
+				} else {
+					fulfil({});
+				}
+			});
+		}
+	};
+</script>
--- a/test/app/server.js
+++ b/test/app/server.js
@@ -1,24 +0,0 @@
-const fs = require('fs');
-const app = require('express')();
-const compression = require('compression');
-const sapper = require('sapper');
-const static = require('serve-static');
-
-const { PORT = 3000 } = process.env;
-
-// this allows us to do e.g. `fetch('/api/blog')` on the server
-const fetch = require('node-fetch');
-global.fetch = (url, opts) => {
-	if (url[0] === '/') url = `http://localhost:${PORT}${url}`;
-	return fetch(url, opts);
-};
-
-app.use(compression({ threshold: 0 }));
-
-app.use(static('assets'));
-
-app.use(sapper());
-
-app.listen(PORT, () => {
-	console.log(`listening on port ${PORT}`);
-});
--- a/test/app/templates/4xx.html
+++ b/test/app/templates/4xx.html
@@ -1,44 +0,0 @@
-<!doctype>
-<html lang='en'>
-<head>
-	<meta charset='utf-8'>
-	<meta name='viewport' content='width=device-width'>
-	<meta name='theme-color' content='#aa1e1e'>
-
-	<link rel='manifest' href='/manifest.json'>
-	<link rel='icon' type='image/png' href='/favicon.png'>
-
-	<!-- %sapper.status% is the HTTP status code, e.g. 404 -->
-	<title>%sapper.status%</title>
-
-	<style>
-		body {
-			max-width: 800px;
-			padding: 1em;
-			margin: 0 auto;
-			font-family: Roboto, -apple-system, BlinkMacSystemFont, Segoe UI, Oxygen, Ubuntu, Cantarell, Fira Sans, Droid Sans, Helvetica Neue, sans-serif;
-			background-color: #f4f4f4;
-			box-sizing: border-box;
-		}
-
-		h1 {
-			color: rgb(170,30,30);
-			border-bottom: 1px solid #aaa;
-			padding: 0 0 0.5em 0;
-			margin: 1em 0;
-		}
-
-		pre {
-			font-family: Menlo, monospace;
-			font-size: 14px;
-			line-height: 1.2;
-			overflow-x: auto;
-			white-space: pre-wrap;
-		}
-	</style>
-</head>
-<body>
-	<h1>%sapper.title%</h1>
-	<p>Could not %sapper.method% %sapper.url%</p>
-</body>
-</html>
--- a/test/app/templates/5xx.html
+++ b/test/app/templates/5xx.html
@@ -1,47 +0,0 @@
-<!doctype>
-<html lang='en'>
-<head>
-	<meta charset='utf-8'>
-	<meta name='viewport' content='width=device-width'>
-	<meta name='theme-color' content='#aa1e1e'>
-
-	<link rel='manifest' href='/manifest.json'>
-	<link rel='icon' type='image/png' href='/favicon.png'>
-
-	<title>%sapper.status%</title>
-
-	<style>
-		body {
-			max-width: 800px;
-			padding: 1em;
-			margin: 0 auto;
-			box-sizing: border-box;
-		}
-
-		h1 {
-			color: rgb(170,30,30);
-			border-bottom: 1px solid #aaa;
-			padding: 0 0 0.5em 0;
-			margin: 1em 0;
-		}
-
-		pre {
-			font-family: Menlo, monospace;
-			font-size: 14px;
-			line-height: 1.2;
-			overflow-x: auto;
-			white-space: pre-wrap;
-		}
-
-		.stack {
-			font-size: 12px;
-			color: #999;
-		}
-	</style>
-</head>
-<body>
-	<h1>%sapper.title%</h1>
-	<pre>%sapper.error%</pre>
-	<pre class='stack'>%sapper.stack%</pre>
-</body>
-</html>
--- a/test/app/templates/main.js
+++ b/test/app/templates/main.js
@@ -1,6 +0,0 @@
-import { init } from '../../../runtime/app.js';
-
-// `routes` is an array of route objects injected by Sapper
-init(document.querySelector('#sapper'), __routes__);
-
-window.READY = true;
--- a/test/app/webpack/client.config.js
+++ b/test/app/webpack/client.config.js
@@ -1,8 +1,8 @@
-const config = require('../../webpack/config.js');
+const config = require('../../../webpack/config.js');
 const webpack = require('webpack');

 module.exports = {
-	entry: config.client.entry(),
+	entry: './app/client.js',
 	output: config.client.output(),
 	resolve: {
 		extensions: ['.js', '.html']
--- a/test/app/webpack/server.config.js
+++ b/test/app/webpack/server.config.js
@@ -1,12 +1,17 @@
-const config = require('../../webpack/config.js');
+const config = require('../../../webpack/config.js');
+const pkg = require('../package.json');
+const sapper_pkg = require('../../../package.json');

 module.exports = {
-	entry: config.server.entry(),
+	entry: {
+		'server': './app/server.js'
+	},
 	output: config.server.output(),
 	target: 'node',
 	resolve: {
 		extensions: ['.js', '.html']
 	},
+	externals: Object.keys(pkg.dependencies).concat(Object.keys(sapper_pkg.dependencies)),
 	module: {
 		rules: [
 			{
--- a/test/app/webpack/service-worker.config.js
+++ b/test/app/webpack/service-worker.config.js
@@ -0,0 +1,17 @@
+const path = require('path');
+const config = require('../../../webpack/config.js');
+const webpack = require('webpack');
+
+module.exports = {
+	entry: {
+		'service-worker': './app/service-worker.js'
+	},
+	output: {
+		path: path.resolve(`.sapper`),
+		filename: '[name].js',
+		chunkFilename: '[name].[id].[hash].js'
+	},
+	plugins: [
+		!config.dev && new webpack.optimize.ModuleConcatenationPlugin()
+	].filter(Boolean)
+};
--- a/test/common/test.js
+++ b/test/common/test.js
@@ -1,234 +1,485 @@
 const path = require('path');
 const assert = require('assert');
+const Nightmare = require('nightmare');
 const express = require('express');
 const serve = require('serve-static');
-const Nightmare = require('nightmare');
-const getPort = require('get-port');
+const walkSync = require('walk-sync');
 const fetch = require('node-fetch');

 run('production');
 run('development');

+Nightmare.action('page', {
+	title(done) {
+		this.evaluate_now(() => document.querySelector('h1').textContent, done);
+	}
+});
+
+Nightmare.action('init', function(done) {
+	this.evaluate_now(() => window.init(), done);
+});
+
 function run(env) {
 	describe(`env=${env}`, function () {
-		this.timeout(5000);
+		this.timeout(20000);

 		let PORT;
-		let server;
+		let proc;
 		let nightmare;
-		let middleware;
 		let capture;

 		let base;

-		function get(url) {
-			return new Promise(fulfil => {
-				const req = {
-					url,
-					method: 'GET'
-				};
-
-				const result = {
-					headers: {},
-					body: ''
-				};
-
-				const res = {
-					set: (headers, value) => {
-						if (typeof headers === 'string') {
-							return res.set({ [headers]: value });
-						}
-
-						Object.assign(result.headers, headers);
-					},
-
-					status: code => {
-						result.status = code;
-					},
-
-					write: data => {
-						result.body += data;
-					},
-
-					end: data => {
-						result.body += data;
-						fulfil(result);
-					}
-				};
-
-				middleware(req, res, () => {
-					fulfil(result);
-				});
-			});
-		}
-
-		before(async () => {
+		before(() => {
 			process.chdir(path.resolve(__dirname, '../app'));

-			process.env.NODE_ENV = env;
+			let exec_promise = Promise.resolve();

 			if (env === 'production') {
-				const cli = path.resolve(__dirname, '../../cli/index.js');
-				await exec(`${cli} build`);
+				const cli = path.resolve(__dirname, '../../cli.js');
+				exec_promise = exec(`node ${cli} export`);
 			}

-			const resolved = require.resolve('../..');
-			delete require.cache[resolved];
-			const sapper = require(resolved);
+			return exec_promise.then(() => {
+				const resolved = require.resolve('../../middleware.js');
+				delete require.cache[resolved];
+				delete require.cache[require.resolve('../../core.js')]; // TODO remove this

-			PORT = await getPort();
-			base = `http://localhost:${PORT}`;
+				return require('get-port')();
+			}).then(port => {
+				base = `http://localhost:${port}`;

-			global.fetch = (url, opts) => {
-				if (url[0] === '/') url = `${base}${url}`;
-				return fetch(url, opts);
-			};
-
-			let captured;
-			capture = async fn => {
-				const result = captured = [];
-				await fn();
-				captured = null;
-				return result;
-			};
-
-			const app = express();
-
-			app.use(serve('assets'));
-
-			app.use((req, res, next) => {
-				if (captured) captured.push(req);
-				next();
-			});
-
-			middleware = sapper();
-			app.use(middleware);
-
-			return new Promise((fulfil, reject) => {
-				server = app.listen(PORT, err => {
-					if (err) reject(err);
-					else fulfil();
+				proc = require('child_process').fork('.sapper/server.js', {
+					cwd: process.cwd(),
+					env: {
+						NODE_ENV: env,
+						PORT: port
+					}
 				});
+
+				let handler;
+
+				proc.on('message', message => {
+					if (message.__sapper__) return;
+					if (handler) handler(message);
+				});
+
+				capture = fn => {
+					return new Promise((fulfil, reject) => {
+						const captured = [];
+
+						let start = Date.now();
+
+						handler = message => {
+							if (message.type === 'ready') {
+								fn().then(() => {
+									proc.send({
+										action: 'end'
+									});
+								}, reject);
+							}
+
+							else if (message.type === 'done') {
+								fulfil(captured);
+								handler = null;
+							}
+
+							else {
+								captured.push(message);
+							}
+						};
+
+						proc.send({
+							action: 'start'
+						});
+					});
+				};
 			});
 		});

 		after(() => {
-			server.close();
-			middleware.close();
+			proc.kill();

 			// give a chance to clean up
 			return new Promise(fulfil => setTimeout(fulfil, 500));
 		});

+		beforeEach(() => {
+			nightmare = new Nightmare();
+
+			nightmare.on('console', (type, ...args) => {
+				console[type](...args);
+			});
+
+			nightmare.on('page', (type, ...args) => {
+				if (type === 'error') {
+					console.error(args[1]);
+				} else {
+					console.warn(type, args);
+				}
+			});
+		});
+
+		afterEach(() => {
+			return nightmare.end();
+		});
+
 		describe('basic functionality', () => {
-			beforeEach(() => {
-				nightmare = new Nightmare();
-
-				nightmare.on('console', (type, ...args) => {
-					console[type](...args);
-				});
-
-				nightmare.on('page', (type, ...args) => {
-					if (type === 'error') {
-						console.error(args[1]);
-					} else {
-						console.warn(type, args);
-					}
+			it('serves /', () => {
+				return nightmare.goto(base).page.title().then(title => {
+					assert.equal(title, 'Great success!');
 				});
 			});

-			afterEach(async () => {
-				await nightmare.end();
+			it('serves /?', () => {
+				return nightmare.goto(`${base}?`).page.title().then(title => {
+					assert.equal(title, 'Great success!');
+				});
 			});

-			it('serves /', async () => {
-				const title = await nightmare
-					.goto(base)
-					.evaluate(() => document.querySelector('h1').textContent);
-
-				assert.equal(title, 'Great success!');
+			it('serves static route', () => {
+				return nightmare.goto(`${base}/about`).page.title().then(title => {
+					assert.equal(title, 'About this site');
+				});
 			});

-			it('serves static route', async () => {
-				const title = await nightmare
+			it('serves dynamic route', () => {
+				return nightmare.goto(`${base}/blog/what-is-sapper`).page.title().then(title => {
+					assert.equal(title, 'What is Sapper?');
+				});
+			});
+
+			it('navigates to a new page without reloading', () => {
+				return capture(() => nightmare.goto(base).init().wait(400))
+					.then(() => {
+						return capture(() => nightmare.click('a[href="/about"]'));
+					})
+					.then(requests => {
+						assert.deepEqual(requests.map(r => r.url), []);
+						return nightmare.path();
+					})
+					.then(path => {
+						assert.equal(path, '/about');
+						return nightmare.title();
+					})
+					.then(title => {
+						assert.equal(title, 'About');
+					});
+			});
+
+			it('navigates programmatically', () => {
+				return nightmare
 					.goto(`${base}/about`)
-					.evaluate(() => document.querySelector('h1').textContent);
-
-				assert.equal(title, 'About this site');
-			});
-
-			it('serves dynamic route', async () => {
-				const title = await nightmare
-					.goto(`${base}/blog/what-is-sapper`)
-					.evaluate(() => document.querySelector('h1').textContent);
-
-				assert.equal(title, 'What is Sapper?');
-			});
-
-			it('navigates to a new page without reloading', async () => {
-				await nightmare.goto(base);
-
-				const requests = await capture(async () => {
-					await nightmare.click('a[href="/about"]');
-				});
-
-				assert.equal(
-					await nightmare.path(),
-					'/about'
-				);
-
-				assert.equal(
-					await nightmare.evaluate(() => document.title),
-					'About'
-				);
-
-				assert.deepEqual(requests.map(r => r.url), []);
-			});
-
-			it('navigates programmatically', async () => {
-				await nightmare
-					.goto(`${base}/about`)
-					.wait(() => window.READY)
-					.click('button')
+					.init()
+					.click('.goto')
 					.wait(() => window.location.pathname === '/blog/what-is-sapper')
-					.wait(100);
+					.wait(100)
+					.title()
+					.then(title => {
+						assert.equal(title, 'What is Sapper?');
+					});
+			});

-				assert.equal(
-					await nightmare.evaluate(() => document.title),
-					'What is Sapper?'
-				);
+			it('prefetches programmatically', () => {
+				return nightmare
+					.goto(`${base}/about`)
+					.init()
+					.wait(200)
+					.then(() => {
+						return capture(() => {
+							return nightmare
+								.click('.prefetch')
+								.wait(200);
+						});
+					})
+					.then(requests => {
+						assert.ok(!!requests.find(r => r.url === '/api/blog/why-the-name'));
+					});
+			});
+
+			it('scrolls to active deeplink', () => {
+				return nightmare
+					.goto(`${base}/blog/a-very-long-post#four`)
+					.init()
+					.evaluate(() => window.scrollY)
+					.then(scrollY => {
+						assert.ok(scrollY > 0, scrollY);
+					});
+			});
+
+			it('reuses prefetch promise', () => {
+				return nightmare
+					.goto(`${base}/blog`)
+					.init().wait(300)
+					.then(() => {
+						return capture(() => {
+							return nightmare
+								.mouseover('[href="/blog/what-is-sapper"]')
+								.wait(200);
+						});
+					})
+					.then(mouseover_requests => {
+						assert.ok(mouseover_requests.findIndex(r => r.url === '/api/blog/what-is-sapper') !== -1);
+
+						return capture(() => {
+							return nightmare
+								.click('[href="/blog/what-is-sapper"]')
+								.wait(200);
+						});
+					})
+					.then(click_requests => {
+						assert.ok(click_requests.findIndex(r => r.url === '/api/blog/what-is-sapper') === -1);
+					});
+			});
+
+			it('cancels navigation if subsequent navigation occurs during preload', () => {
+				return nightmare
+					.goto(base)
+					.init()
+					.click('a[href="/slow-preload"]')
+					.wait(100)
+					.click('a[href="/about"]')
+					.wait(100)
+					.then(() => nightmare.path())
+					.then(path => {
+						assert.equal(path, '/about');
+						return nightmare.title();
+					})
+					.then(title => {
+						assert.equal(title, 'About');
+						return nightmare.evaluate(() => window.fulfil({})).wait(100);
+					})
+					.then(() => nightmare.path())
+					.then(path => {
+						assert.equal(path, '/about');
+						return nightmare.title();
+					})
+					.then(title => {
+						assert.equal(title, 'About');
+					});
+			});
+
+			it('passes entire request object to preload', () => {
+				return nightmare
+					.goto(`${base}/show-url`)
+					.init()
+					.evaluate(() => document.querySelector('p').innerHTML)
+					.end().then(html => {
+						assert.equal(html, `URL is /show-url`);
+					});
+			});
+
+			it('calls a delete handler', () => {
+				return nightmare
+					.goto(`${base}/delete-test`)
+					.init()
+					.click('.del')
+					.wait(() => window.deleted)
+					.evaluate(() => window.deleted.id)
+					.then(id => {
+						assert.equal(id, 42);
+					});
+			});
+
+			it('hydrates initial route', () => {
+				return nightmare.goto(base)
+					.wait('.hydrate-test')
+					.evaluate(() => {
+						window.el = document.querySelector('.hydrate-test');
+					})
+					.init()
+					.evaluate(() => {
+						return document.querySelector('.hydrate-test') === window.el;
+					})
+					.then(matches => {
+						assert.ok(matches);
+					});
+			});
+
+			it('redirects on server', () => {
+				return nightmare.goto(`${base}/redirect-from`)
+					.path()
+					.then(path => {
+						assert.equal(path, '/redirect-to');
+					})
+					.then(() => nightmare.page.title())
+					.then(title => {
+						assert.equal(title, 'redirected');
+					});
+			});
+
+			it('redirects in client', () => {
+				return nightmare.goto(base)
+					.wait('[href="/redirect-from"]')
+					.click('[href="/redirect-from"]')
+					.wait(200)
+					.path()
+					.then(path => {
+						assert.equal(path, '/redirect-to');
+					})
+					.then(() => nightmare.page.title())
+					.then(title => {
+						assert.equal(title, 'redirected');
+					});
+			});
+
+			it('handles 4xx error on server', () => {
+				return nightmare.goto(`${base}/blog/nope`)
+					.path()
+					.then(path => {
+						assert.equal(path, '/blog/nope');
+					})
+					.then(() => nightmare.page.title())
+					.then(title => {
+						assert.equal(title, 'Not found')
+					});
+			});
+
+			it('handles 4xx error in client', () => {
+				return nightmare.goto(base)
+					.init()
+					.click('[href="/blog/nope"]')
+					.wait(200)
+					.path()
+					.then(path => {
+						assert.equal(path, '/blog/nope');
+					})
+					.then(() => nightmare.page.title())
+					.then(title => {
+						assert.equal(title, 'Not found');
+					});
+			});
+
+			it('handles non-4xx error on server', () => {
+				return nightmare.goto(`${base}/blog/throw-an-error`)
+					.path()
+					.then(path => {
+						assert.equal(path, '/blog/throw-an-error');
+					})
+					.then(() => nightmare.page.title())
+					.then(title => {
+						assert.equal(title, 'Internal server error')
+					});
+			});
+
+			it('handles non-4xx error in client', () => {
+				return nightmare.goto(base)
+					.init()
+					.click('[href="/blog/throw-an-error"]')
+					.wait(200)
+					.path()
+					.then(path => {
+						assert.equal(path, '/blog/throw-an-error');
+					})
+					.then(() => nightmare.page.title())
+					.then(title => {
+						assert.equal(title, 'Internal server error');
+					});
 			});
 		});

 		describe('headers', () => {
-			it('sets Content-Type and Link...preload headers', async () => {
-				const { headers } = await get('/');
+			it('sets Content-Type and Link...preload headers', () => {
+				return capture(() => nightmare.goto(base).end()).then(requests => {
+					const { headers } = requests[0];

-				assert.equal(
-					headers['Content-Type'],
-					'text/html'
-				);
+					assert.equal(
+						headers['content-type'],
+						'text/html'
+					);

-				assert.ok(
-					/<\/client\/main.\w+\.js>;rel="preload";as="script", <\/client\/_.\d+.\w+.js>;rel="preload";as="script"/.test(headers['Link']),
-					headers['Link']
-				);
+					assert.ok(
+						/<\/client\/[^/]+\/main\.js>;rel="preload";as="script", <\/client\/[^/]+\/_\.0\.js>;rel="preload";as="script"/.test(headers['link']),
+						headers['link']
+					);
+				});
 			});
 		});
+
+		if (env === 'production') {
+			describe('export', () => {
+				it('export all pages', () => {
+					const dest = path.resolve(__dirname, '../app/dist');
+
+					// Pages that should show up in the extraction directory.
+					const expectedPages = [
+						'index.html',
+						'about/index.html',
+						'slow-preload/index.html',
+
+						'blog/index.html',
+						'blog/a-very-long-post/index.html',
+						'blog/how-can-i-get-involved/index.html',
+						'blog/how-is-sapper-different-from-next/index.html',
+						'blog/how-to-use-sapper/index.html',
+						'blog/what-is-sapper/index.html',
+						'blog/why-the-name/index.html',
+
+						'api/blog/contents',
+						'api/blog/a-very-long-post',
+						'api/blog/how-can-i-get-involved',
+						'api/blog/how-is-sapper-different-from-next',
+						'api/blog/how-to-use-sapper',
+						'api/blog/what-is-sapper',
+						'api/blog/why-the-name',
+
+						'favicon.png',
+						'global.css',
+						'great-success.png',
+						'manifest.json',
+						'service-worker.js',
+						'svelte-logo-192.png',
+						'svelte-logo-512.png',
+					];
+					// Client scripts that should show up in the extraction directory.
+					const expectedClientRegexes = [
+						/client\/[^/]+\/_(\.\d+)?\.js/,
+						/client\/[^/]+\/about(\.\d+)?\.js/,
+						/client\/[^/]+\/blog_\$slug\$(\.\d+)?\.js/,
+						/client\/[^/]+\/blog(\.\d+)?\.js/,
+						/client\/[^/]+\/main(\.\d+)?\.js/,
+						/client\/[^/]+\/show_url(\.\d+)?\.js/,
+						/client\/[^/]+\/slow_preload(\.\d+)?\.js/,
+					];
+					const allPages = walkSync(dest);
+
+					expectedPages.forEach((expectedPage) => {
+						assert.ok(allPages.includes(expectedPage),`Could not find page matching ${expectedPage}`);
+					});
+
+					expectedClientRegexes.forEach((expectedRegex) => {
+						// Ensure each client page regular expression matches at least one
+						// generated page.
+						let matched = false;
+						for (const page of allPages) {
+							if (expectedRegex.test(page)) {
+								matched = true;
+								break;
+							}
+						}
+						assert.ok(matched, `Could not find client page matching ${expectedRegex}`);
+					});
+				});
+			});
+		}
 	});
 }

 function exec(cmd) {
 	return new Promise((fulfil, reject) => {
-		require('child_process').exec(cmd, (err, stdout, stderr) => {
-			if (err) {
-				process.stdout.write(stdout);
-				process.stderr.write(stderr);
+		const parts = cmd.split(' ');
+		const proc = require('child_process').spawn(parts.shift(), parts);

-				return reject(err);
-			}
-
-			fulfil();
+		proc.stdout.on('data', data => {
+			process.stdout.write(data);
 		});
+
+		proc.stderr.on('data', data => {
+			process.stderr.write(data);
+		});
+
+		proc.on('error', reject);
+
+		proc.on('close', () => fulfil());
 	});
-}
+}
--- a/test/unit/create_routes.test.js
+++ b/test/unit/create_routes.test.js
@@ -1,27 +1,29 @@
-const path = require('path');
 const assert = require('assert');
-
-const create_routes = require('../../lib/utils/create_routes.js');
+const { create_routes } = require('../../core.js');

 describe('create_routes', () => {
 	it('sorts routes correctly', () => {
-		const routes = create_routes(['index.html', 'about.html', '[wildcard].html', 'post/foo.html', 'post/[id].html', 'post/bar.html']);
+		const routes = create_routes({
+			files: ['index.html', 'about.html', '[wildcard].html', 'post/foo.html', 'post/[id].html', 'post/bar.html']
+		});

 		assert.deepEqual(
 			routes.map(r => r.file),
 			[
+				'index.html',
+				'about.html',
 				'post/foo.html',
 				'post/bar.html',
 				'post/[id].html',
-				'about.html',
-				'[wildcard].html',
-				'index.html'
+				'[wildcard].html'
 			]
 		);
 	});

 	it('generates params', () => {
-		const routes = create_routes(['index.html', 'about.html', '[wildcard].html', 'post/[id].html']);
+		const routes = create_routes({
+			files: ['index.html', 'about.html', '[wildcard].html', 'post/[id].html']
+		});

 		let file;
 		let params;
@@ -40,20 +42,26 @@ describe('create_routes', () => {
 	});

 	it('ignores files and directories with leading underscores', () => {
-		const routes = create_routes(['index.html', '_foo.html', 'a/_b/c/d.html', 'e/f/g/h.html', 'i/_j.html']);
+		const routes = create_routes({
+			files: ['index.html', '_foo.html', 'a/_b/c/d.html', 'e/f/g/h.html', 'i/_j.html']
+		});

 		assert.deepEqual(
 			routes.map(r => r.file),
 			[
-				'e/f/g/h.html',
-				'index.html'
+				'index.html',
+				'e/f/g/h.html'
 			]
 		);
 	});

 	it('matches /foo/:bar before /:baz/qux', () => {
-		const a = create_routes(['foo/[bar].html', '[baz]/qux.html']);
-		const b = create_routes(['[baz]/qux.html', 'foo/[bar].html']);
+		const a = create_routes({
+			files: ['foo/[bar].html', '[baz]/qux.html']
+		});
+		const b = create_routes({
+			files: ['[baz]/qux.html', 'foo/[bar].html']
+		});

 		assert.deepEqual(
 			a.map(r => r.file),
@@ -68,7 +76,61 @@ describe('create_routes', () => {

 	it('fails if routes are indistinguishable', () => {
 		assert.throws(() => {
-			create_routes(['[foo].html', '[bar]/index.html']);
+			create_routes({
+				files: ['[foo].html', '[bar]/index.html']
+			});
 		}, /The \[foo\].html and \[bar\]\/index.html routes clash/);
+
+		assert.throws(() => {
+			create_routes({
+				files: ['foo.html', 'foo.js']
+			});
+		}, /The foo.html and foo.js routes clash/);
+	});
+
+	it('matches nested routes', () => {
+		const route = create_routes({
+			files: ['settings/[submenu].html']
+		})[0];
+
+		assert.deepEqual(route.exec('/settings/foo'), {
+			submenu: 'foo'
+		});
+
+		assert.deepEqual(route.exec('/settings'), {
+			submenu: null
+		});
+	});
+
+	it('prefers index routes to nested routes', () => {
+		const routes = create_routes({
+			files: ['settings/[submenu].html', 'settings.html']
+		});
+
+		assert.deepEqual(
+			routes.map(r => r.file),
+			['settings.html', 'settings/[submenu].html']
+		);
+	});
+
+	it('matches deeply nested routes', () => {
+		const route = create_routes({
+			files: ['settings/[a]/[b]/index.html']
+		})[0];
+
+		assert.deepEqual(route.exec('/settings/foo/bar'), {
+			a: 'foo',
+			b: 'bar'
+		});
+
+		assert.deepEqual(route.exec('/settings/foo'), {
+			a: 'foo',
+			b: null
+		});
+
+		assert.deepEqual(route.exec('/settings'), {
+			a: null,
+			b: null
+		});
 	});
 });
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -0,0 +1,18 @@
+{
+    "compilerOptions": {
+        "diagnostics": true,
+        "noImplicitThis": true,
+        "noImplicitAny": true,
+        "noEmitOnError": true,
+        "allowJs": true,
+        "lib": ["es5", "es6", "dom"],
+        "importHelpers": true
+    },
+    "target": "ES5",
+    "include": [
+        "src"
+    ],
+    "exclude": [
+        "node_modules"
+    ]
+}
--- a/webpack/config.js
+++ b/webpack/config.js
@@ -1,40 +0,0 @@
-const path = require('path');
-const { src, dest, dev, entry } = require('../lib/config.js');
-
-module.exports = {
-	dev,
-
-	client: {
-		entry: () => {
-			return {
-				main: entry.client
-			};
-		},
-
-		output: () => {
-			return {
-				path: `${dest}/client`,
-				filename: '[name].[hash].js',
-				chunkFilename: '[name].[id].[hash].js',
-				publicPath: '/client/'
-			};
-		}
-	},
-
-	server: {
-		entry: () => {
-			return {
-				main: entry.server
-			}
-		},
-
-		output: () => {
-			return {
-				path: `${dest}/server`,
-				filename: '[name].[hash].js',
-				chunkFilename: '[name].[id].[hash].js',
-				libraryTarget: 'commonjs2'
-			};
-		}
-	}
-};
--- a/webpack/hmr.js
+++ b/webpack/hmr.js
@@ -1 +0,0 @@
-import 'webpack-hot-middleware/client?path=/__webpack_hmr&timeout=20000';
Author	SHA1	Message	Date
Rich Harris	c0cc877456	-> v0.7.3	2018-02-20 12:23:32 -05:00
Rich Harris	3ed9ce27a1	Merge pull request #131 from sveltejs/webpack-insanity handle case where webpack asset is an array instead of a string	2018-02-20 12:18:29 -05:00
Rich Harris	edba45b809	Merge pull request #129 from sveltejs/robustify-hmr ensure old server is killed before listening for port on new server	2018-02-20 12:18:10 -05:00
Rich Harris	43c1890235	handle case where webpack asset is an array instead of a string	2018-02-20 11:11:55 -05:00
Rich Harris	605929053c	ensure old server is killed before listening for port on new server	2018-02-20 11:11:02 -05:00
Rich Harris	2752c73ebb	-> v0.7.2	2018-02-18 17:24:12 -05:00
Rich Harris	2547db39ac	-> v0.7.1	2018-02-18 17:09:55 -05:00
Rich Harris	1285739cc5	-> v0.7.1	2018-02-18 17:08:35 -05:00
Rich Harris	14d64e854a	-> v0.7.0	2018-02-18 13:00:36 -05:00
Rich Harris	c419c73550	fix tests	2018-02-18 12:55:56 -05:00
Rich Harris	835b94175d	workaround weird webpack(?) bug by not deleting old files	2018-02-18 12:49:37 -05:00
Rich Harris	25bdcf9957	Merge branch 'gh-83'	2018-02-18 12:12:45 -05:00
Rich Harris	792ccf5c6a	robustify dev server port selection	2018-02-18 12:12:25 -05:00
Rich Harris	4ca8195037	Merge pull request #127 from sveltejs/gh-83 implement this.redirect in preload	2018-02-18 10:36:05 -05:00
Rich Harris	cb12231053	implement this.error	2018-02-18 09:48:32 -05:00
Rich Harris	d55401d45b	see if this fixes windows tests	2018-02-18 08:27:07 -05:00
Rich Harris	99d4eafb0b	argh these flaky tests are killing me	2018-02-18 08:18:14 -05:00
Rich Harris	bff6f550be	implement this.redirect in preload (#83 )	2018-02-17 22:56:47 -05:00
Rich Harris	f8ea9ebda1	Merge pull request #126 from sveltejs/gh-91 [WIP] restructure everything	2018-02-17 19:49:12 -05:00
Rich Harris	181d7b4a61	need to come up with a more robust approach to this...	2018-02-17 19:27:34 -05:00
Rich Harris	beb415c65d	argh	2018-02-17 19:22:05 -05:00
Rich Harris	5bbd7ead17	and again	2018-02-17 19:16:06 -05:00
Rich Harris	e11405d555	try increasing timeout	2018-02-17 19:12:47 -05:00
Rich Harris	9fe0ca2c22	remove 4xx and 5xx pages when initing	2018-02-17 19:00:06 -05:00
Rich Harris	f2eb95d546	various minor fixes	2018-02-17 18:40:20 -05:00
Rich Harris	ab1ca60363	basic sapper dev task, with HMR	2018-02-17 17:44:57 -05:00
Rich Harris	d95f52f8e9	fix tests, add WIP dev task	2018-02-17 11:15:26 -05:00
Rich Harris	b02183af53	fix exporting	2018-02-16 14:25:53 -05:00
Rich Harris	f9828f9fd2	work in progress	2018-02-16 12:01:55 -05:00
Rich Harris	9a760c570f	move webpack configs in test app	2018-02-14 12:25:40 -05:00
Rich Harris	0f390920a8	fix some typescript stuff	2018-02-14 12:25:24 -05:00
Rich Harris	9adb6ca7e6	Merge pull request #120 from sveltejs/gh-92 implement sapper upgrade	2018-02-14 10:28:01 -05:00
Rich Harris	24980651c0	that was a weird typo	2018-02-13 22:08:29 -05:00
Rich Harris	7c6436a99c	implement sapper upgrade	2018-02-13 18:46:53 -05:00
Rich Harris	f6b26f1b07	Merge pull request #119 from sveltejs/better-cli Better CLI	2018-02-13 17:30:08 -05:00
Rich Harris	55b60369f9	add --help to CLI	2018-02-13 17:12:55 -05:00
Rich Harris	2be9dd1883	Move build.ts and export.ts into src/cli - fixes #115	2018-02-13 15:57:02 -05:00
Rich Harris	b29700f725	update electron to squelch vuln warning	2018-02-13 15:50:04 -05:00
Rich Harris	7188ce0d0d	-> v0.6.4	2018-02-06 10:51:24 -05:00
Rich Harris	4f8ce19fe1	Merge pull request #114 from lukeed/fix/prod-hmr Fix: Remove HMR attempts in Prod~!	2018-02-06 10:39:19 -05:00
Rich Harris	a85f2921e8	Merge pull request #113 from lukeed/feat/map-config Consolidate Rollup config file	2018-02-06 10:37:34 -05:00
Luke Edwards	7a2ed16884	fix HMR attempts in production	2018-02-05 14:09:24 -08:00
Luke Edwards	08e575fee0	shrink repetitive rollup.config file	2018-02-05 13:43:10 -08:00
Rich Harris	7dbcab74d3	remove logging	2018-02-03 16:35:10 -05:00
Rich Harris	9b1b545194	-> v0.6.3	2018-02-03 16:26:53 -05:00
Rich Harris	7b01242f3e	always build in prod mode	2018-02-03 16:26:47 -05:00
Rich Harris	15b1fbf8a6	ignore non-html responses when crawling, and close middleware when done	2018-02-03 16:17:28 -05:00
Rich Harris	8f1d2e0a04	-> v0.6.2	2018-02-03 13:56:38 -05:00
Rich Harris	dfb8692d78	handle unspecified type in sapper export	2018-02-03 13:56:14 -05:00
Rich Harris	09d3c4d85e	add prepublish script	2018-02-03 13:49:21 -05:00
Rich Harris	1e623dde29	-> v0.6.1	2018-02-03 13:48:30 -05:00
Rich Harris	5104abf329	-> v0.6.0	2018-02-03 13:09:31 -05:00
Rich Harris	6554fc8616	Merge branch 'restructure'	2018-02-03 13:07:36 -05:00
Rich Harris	cd01b7e6db	Merge branch 'master' of github.com:sveltejs/sapper	2018-02-03 12:24:59 -05:00
Rich Harris	bfa3da6d3d	Merge branch 'issue_109-patch-1' of https://github.com/samhatchett/sapper into samhatchett-issue_109-patch-1	2018-02-03 12:07:53 -05:00
Rich Harris	6ee092f8d4	Merge pull request #107 from lukastaegert/fix-search-param-handling Fix query param handling	2018-02-03 12:05:57 -05:00
Rich Harris	ac70004f77	remove runtime.js.map (again?)	2018-02-03 12:04:39 -05:00
Rich Harris	3449f1eb37	add test for #105	2018-02-03 12:04:14 -05:00
Rich Harris	16cb1fccc6	Merge pull request #105 from thgh/patch-2 Fix route not found when url is /?	2018-02-03 12:03:36 -05:00
Rich Harris	b20c1c029f	Merge branch 'thgh-patch-1'	2018-02-03 11:50:37 -05:00
Rich Harris	7abfb1aab1	Merge branch 'restructure'	2018-02-03 11:50:12 -05:00
Rich Harris	205c2defe4	Merge branch 'patch-1' of https://github.com/thgh/sapper into thgh-patch-1	2018-02-03 11:45:54 -05:00
Rich Harris	09a6eec83e	Merge pull request #101 from sveltejs/restructure Restructure codebase	2018-02-03 11:44:57 -05:00
Rich Harris	2cabf61ea7	ignore runtime.js.map	2018-02-03 11:41:33 -05:00
Sam Hatchett	71cfdd2907	fixes api route default content-type fixes issue where api routes were being defaulted to text/html. Page routes should be text/html, but api routes could be json, zip files, etc., and express does some type-guessing to assist in case the user code does not specify the content-type.	2018-01-31 11:08:25 -05:00
Lukas Taegert	297f4276de	Fix query param handling by * not using a for-of loop on an iterator that is transpiled wrongly * not using URL.searchParams which is only supported by rather new browsers	2018-01-26 23:29:34 +01:00
Thomas Ghysels	422e31e183	Fix route not found when url is /?	2018-01-26 02:48:56 +01:00
Thomas Ghysels	b53ee061c0	Fix DOMException when location.hash is invalid selector	2018-01-26 02:24:49 +01:00
Rich Harris	8bad37205d	convert to typescript	2018-01-21 16:28:02 -05:00
Rich Harris	fd0dd4fe58	and again...	2018-01-21 16:14:16 -05:00
Rich Harris	4940644ae3	more tidying up	2018-01-21 16:11:46 -05:00
Rich Harris	fb8d952eeb	more tidying up	2018-01-21 16:02:42 -05:00
Rich Harris	fc631c4866	make route handling more explicit	2018-01-21 15:41:13 -05:00
Rich Harris	03ce2ea998	tidy up a bit	2018-01-21 15:04:22 -05:00
Rich Harris	dd8deb2d8a	wip 3	2018-01-21 14:41:11 -05:00
Rich Harris	7d721abb2a	wip 2	2018-01-21 11:15:32 -05:00
Rich Harris	39b1fa89ce	wip	2018-01-21 11:03:23 -05:00
Rich Harris	7a3506420f	Merge pull request #100 from sveltejs/gh-99 return a promise from init	2018-01-20 20:16:46 -05:00
Rich Harris	72ae4a1c64	ugh still need to wait for requests to complete	2018-01-20 19:55:21 -05:00
Rich Harris	a09c33d6a5	return a promise from init - fixes #99	2018-01-20 19:49:41 -05:00
Rich Harris	4590aa313c	Merge pull request #96 from mrkishi/master Identify js and html route clashes	2018-01-20 18:36:50 -05:00
Rich Harris	d11bd954e0	seems tests weren't actually running in appveyor? (#98 ) well this was harder than it should have been	2018-01-20 18:34:30 -05:00
Rich Harris	c15959710b	huh. not sure where this broke	2018-01-20 13:39:49 -05:00
Rich Harris	bb8ff74f68	remove noise from tests	2018-01-20 13:21:53 -05:00
Rich Harris	2cbbe91490	Merge branch 'master' of github.com:sveltejs/sapper	2018-01-20 12:53:16 -05:00
Rich Harris	faeddd8add	work around Svelte hydration failures	2018-01-20 12:53:06 -05:00
Rich Harris	d77722c042	Merge branch 'chexxor-patch-1'	2018-01-20 12:40:35 -05:00
Rich Harris	61daba7a64	add hydration test, add window.init function to make it possible	2018-01-20 12:40:31 -05:00
Rich Harris	54ff8cc2e6	Merge branch 'patch-1' of https://github.com/chexxor/sapper into chexxor-patch-1	2018-01-20 12:37:48 -05:00
Rich Harris	e6fcafe09b	Merge pull request #95 from lukeed/fix/express-reliance Remove Express Helpers	2018-01-20 12:10:43 -05:00
Rich Harris	a305d3cea1	Merge pull request #97 from sveltejs/gh-90 return service worker from generate_asset_cache	2018-01-20 12:09:11 -05:00
Rich Harris	75e70207b8	return service worker from generate_asset_cache - fixes #90	2018-01-20 12:02:32 -05:00
mrkishi	8a8526d9ed	Identify js and html route clashes	2018-01-20 01:42:13 -02:00
Luke Edwards	9a76229bb6	test: shim `setHeader` method	2018-01-19 13:56:01 -08:00
Luke Edwards	f4e46e6e6c	replace Express shorthands w/ native counterparts	2018-01-19 13:54:55 -08:00
Alex Berg	90cd347112	Fix typo	2018-01-19 01:25:20 -06:00
Alex Berg	5adfdd6fe0	Hydrate on first load, not destroy	2018-01-19 01:22:08 -06:00
Rich Harris	a6dc61a182	-> v0.5.1	2018-01-16 08:47:50 -05:00
Rich Harris	96666d05ec	only write to filesystem in dev mode	2018-01-16 08:47:44 -05:00
Rich Harris	6390ba692b	-> v0.5.0	2018-01-15 10:28:48 -05:00
Rich Harris	0e131cc81e	Merge pull request #88 from sveltejs/gh-9 Exporting	2018-01-15 10:24:35 -05:00
Rich Harris	bd3d5713cb	Merge pull request #64 from lukeed/lazy-chokidar Lazily Require Chokidar	2018-01-15 10:04:37 -05:00
Rich Harris	9ec23c47ad	update test	2018-01-15 10:04:24 -05:00
Rich Harris	b7bb69925e	rename extract to export, for familiarity to next.js devs	2018-01-15 10:03:27 -05:00
Rich Harris	25124f6ee7	Merge branch 'master' into lazy-chokidar	2018-01-15 09:58:39 -05:00
Rich Harris	73d491cd19	Merge branch 'master' into lazy-chokidar	2018-01-15 09:58:03 -05:00
Rich Harris	e25fceb4b8	node 6 is the new IE	2018-01-15 09:36:12 -05:00
Rich Harris	3807147c57	add missing dependency	2018-01-14 22:45:59 -05:00
Rich Harris	a523ba58ff	save pages as index.html, ignore hashes	2018-01-14 22:45:51 -05:00
Rich Harris	fe03fd3a52	update lockfile	2018-01-14 18:21:37 -05:00
Rich Harris	89c430a0cb	slightly different approach to extracting	2018-01-14 18:19:51 -05:00
Rich Harris	8ef312849c	always write service-worker.js and shell index.html file	2018-01-14 18:16:10 -05:00
Rich Harris	4200446684	ignore trailing slash in pathnames	2018-01-14 18:15:40 -05:00
Rich Harris	681ed005b8	remove unused deps	2018-01-14 18:15:12 -05:00
Rich Harris	d457af8d51	update test	2018-01-14 18:14:07 -05:00
Rich Harris	0c158b9e1f	Merge branch 'master' of https://github.com/freedmand/sapper into freedmand-master	2018-01-14 13:48:07 -05:00
Rich Harris	50011e2077	always print stdout/stderr, to avoid wild goose chase debugging	2018-01-14 13:47:23 -05:00
Rich Harris	f27b7973e3	Build before extracting	2018-01-14 13:46:25 -05:00
Rich Harris	2af2ab3cb9	Ensure output dir exists, return Promise	2018-01-14 13:45:47 -05:00
Rich Harris	6a4dc1901c	Enforce prod mode, return a Promise so it can be used programmatically	2018-01-14 13:45:01 -05:00
Rich Harris	fbbc0e9e19	Merge branch 'master' of https://github.com/freedmand/sapper into freedmand-master	2018-01-14 12:29:15 -05:00
Rich Harris	1213c3da46	fix lockfile mess	2018-01-14 12:27:35 -05:00
Rich Harris	4cc2104088	add back test that got lost in a merge conflict somewhere	2018-01-14 12:23:07 -05:00
Rich Harris	d6dda371ca	typo	2018-01-14 12:22:41 -05:00
Rich Harris	304c06085e	Merge branch 'master' into master	2018-01-14 12:19:47 -05:00
Rich Harris	33b6450e34	Merge branch 'master' into master	2018-01-14 12:16:09 -05:00
Rich Harris	8faa98af6a	-> v0.4.0	2018-01-14 12:07:06 -05:00
Rich Harris	14df138528	Merge pull request #87 from sveltejs/gh-3 Serialize preloaded data for initial page and serve to client	2018-01-14 11:50:18 -05:00
Rich Harris	44285cdb2f	serialized preloaded data and send to client as initial payload - fixes #3	2018-01-14 11:22:00 -05:00
Rich Harris	bd656cfd5b	Merge branch 'fix-tests-without-async' into gh-3	2018-01-14 10:45:55 -05:00
Rich Harris	c4b4bd587d	use %sapper.scripts%	2018-01-14 10:45:21 -05:00
Rich Harris	2abfdb03d5	wait for window.READY so that this tests we dont double-preload	2018-01-14 10:44:38 -05:00
Rich Harris	a80ac3a8b8	change tests back to non-async versions	2018-01-14 00:43:57 -05:00
Rich Harris	887cb09386	merge	2018-01-14 00:21:55 -05:00
Rich Harris	cfeeafded4	Merge pull request #84 from sveltejs/test-in-node-6 test in node 6	2018-01-14 00:18:23 -05:00
Rich Harris	2cae674033	Merge branch 'master' into test-in-node-6	2018-01-14 00:14:40 -05:00
Rich Harris	7c0f32662d	remove async from new test	2018-01-14 00:10:20 -05:00
Rich Harris	b4fb1c3268	Merge branch 'master' of github.com:sveltejs/sapper	2018-01-14 00:02:32 -05:00
Rich Harris	ecd0f673a9	test in node 6	2018-01-14 00:01:51 -05:00
Rich Harris	40d16852f7	prevent unnecessary promise chains, and hoist handler function	2018-01-14 00:01:10 -05:00
Rich Harris	133be03791	Merge pull request #72 from nolanlawson/fix-style-loader Explicitly load style-loader/css-loader deps	2018-01-13 23:33:38 -05:00
Rich Harris	727a76ebb5	fall through to 404 if no handler exists for method	2018-01-13 23:29:41 -05:00
Rich Harris	e3c047831a	add test for #77	2018-01-13 23:29:16 -05:00
Emil Tholin	81b5e0d764	Handle DELETE requests with del export	2018-01-10 19:24:22 +01:00
Emil Tholin	98e904dcfc	Remove async/await from test.js	2018-01-07 12:22:40 +01:00
Nolan Lawson	ca51372150	Explicitly load style-loader/css-loader deps This appears to fix sveltejs/sapper-template#27	2018-01-06 17:21:40 -08:00
Luke Edwards	7cef1f1120	only return from `show-url` if in server context	2018-01-06 16:11:39 -08:00
Luke Edwards	1b73baabce	[temp - debug]: log out the `preload` value	2018-01-06 15:40:40 -08:00
Luke Edwards	5aa01b922b	add `page.title()` Nightmare action	2018-01-06 15:16:18 -08:00
Luke Edwards	f0bc68be88	use built-in for `document.title`	2018-01-06 15:07:43 -08:00
Luke Edwards	be7c53becc	quick attempt at fixing test for travis	2018-01-06 14:53:14 -08:00
freedmand	9ea4137b87	Add option to extract server-side routes at directories other than /api. Also clarifies some texts and documentation.	2018-01-05 19:21:25 -08:00
freedmand	7588911108	Removes all async/await from the extraction pipeline, and adds unit tests for extracted client pages that match a regular expression	2018-01-05 14:56:58 -08:00
freedmand	fc8280adea	Fixes small issue with reading chunk files	2018-01-05 14:42:04 -08:00
freedmand	d08f9eb5a4	Fixes funky indentation in extraction unit test	2018-01-05 14:29:46 -08:00
Emil Tholin	2b3472b1b1	Remove async/await from lib	2018-01-05 23:19:40 +01:00
freedmand	30ddb3dd7e	Adds a `sapper extract` CLI command, which scrapes the server to run as a static website starting at the site's root. TESTED=Basic unit test ensuring relevant routes are added.	2018-01-05 14:16:30 -08:00
Luke Edwards	0c891ba79e	require chokidar lazily; dev-mode only	2018-01-05 00:39:17 -08:00
Rich Harris	ee94f355d5	update marked due to vulnerability	2018-01-04 17:17:08 -05:00
Rich Harris	bea9b7965a	update package-lock	2018-01-04 17:13:17 -05:00
Rich Harris	1312aede1f	-> v0.3.2	2018-01-03 13:48:03 -05:00
Rich Harris	50e307e0c0	add test for programmatic prefetch	2018-01-03 13:46:07 -05:00
Emil Tholin	e87ac1f367	Export prefetch	2018-01-03 18:39:51 +01:00
Rich Harris	5da9d0926a	update README, add license	2018-01-01 16:50:21 -05:00
Rich Harris	9538499d51	-> v0.3.1	2017-12-31 16:36:02 -05:00
Rich Harris	ff1e632057	-> v0.3.0	2017-12-31 16:10:36 -05:00
Rich Harris	aeeb231477	Merge branch 'master' of github.com:sveltejs/sapper	2017-12-31 16:08:14 -05:00
Rich Harris	d1940db8c0	Merge pull request #56 from sveltejs/gh-55 handle nested routes	2017-12-31 16:08:08 -05:00
Rich Harris	98f9a64b64	specify pkg.files	2017-12-31 16:05:26 -05:00
Rich Harris	b9bef802d3	lint	2017-12-31 16:05:18 -05:00
Rich Harris	a7024b3806	fix index route	2017-12-31 16:04:54 -05:00
Rich Harris	423e02aeae	handle nested routes - fixes #55	2017-12-31 13:25:52 -05:00
Rich Harris	12b73ecebf	Merge pull request #54 from sveltejs/preload-req pass server request object to preload	2017-12-31 13:02:24 -05:00
Rich Harris	e1bc38b5a7	bump timeout	2017-12-31 12:49:17 -05:00
Rich Harris	b66f624f01	pass server request object to preload	2017-12-30 17:31:07 -05:00
Rich Harris	502dd547d1	only preload once - fixes #49	2017-12-25 18:06:27 -05:00
Rich Harris	4c343490d2	merge master -> gh-49	2017-12-25 17:34:27 -05:00
Rich Harris	b3027c5816	port runtime to typescript, move runtime/app.js to runtime.js	2017-12-25 17:14:39 -05:00
Rich Harris	c29e8022cc	replace all occurences of variables	2017-12-25 16:18:19 -05:00
Rich Harris	e4cd4c9cb0	Merge pull request #52 from sveltejs/gh-48 cancel navigation if overtaken by a second navigation	2017-12-25 16:17:48 -05:00
Rich Harris	feddad42b2	failing test for #49	2017-12-24 21:34:28 -05:00
Rich Harris	3c4ebcda30	cancel navigation if overtaken by a second navigation - fixes #48	2017-12-24 20:37:00 -05:00
Rich Harris	75aedf4663	-> v0.2.10	2017-12-24 07:56:01 -05:00
Rich Harris	c8366dec74	handle deep links	2017-12-24 07:53:39 -05:00
				`@@ -0,0 +1 @@`
				`This directory exists for legacy reasons and should be deleted before releasing version 1.`
				`@@ -1 +0,0 @@`
				`import 'webpack-hot-middleware/client?path=/__webpack_hmr&timeout=20000';`