-> v0.4.0

Serialize preloaded data for initial page and serve to client

.travis.yml

@@ -3,6 +3,7 @@ sudo: false
 language: node_js
 
 node_js:
+  - "6"
   - "stable"
 
 env:

CHANGELOG.md

@@ -1,5 +1,13 @@
 # sapper changelog
 
+## 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))

lib/index.js

@@ -1,5 +1,6 @@
 const fs = require('fs');
 const path = require('path');
+const serialize = require('serialize-javascript');
 const route_manager = require('./route_manager.js');
 const templates = require('./templates.js');
 const create_app = require('./utils/create_app.js');
@@ -23,9 +24,11 @@ function connect_dev() {
 			heartbeat: 10 * 1000
 		}),
 
-		async (req, res, next) => {
+		(req, res, next) => {
-			asset_cache = await watcher.ready;
+			watcher.ready.then(cache => {
-			next();
+				asset_cache = cache;
+				next();
+			});
 		},
 
 		set_req_pathname,
@@ -125,76 +128,98 @@ function get_asset_handler(opts) {
 	};
 }
 
-function get_route_handler(fn) {
+const resolved = Promise.resolve();
-	return async function handle_route(req, res, next) {
-		const url = req.pathname;
 
-		const { client, server } = fn();
+function get_route_handler(fn) {
+	function handle_route(route, req, res, next, { client, server }) {
+		req.params = route.exec(req.pathname);
+
+		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(req)).then(preloaded => {
+					const serialized = try_serialize(preloaded);
+					Object.assign(data, preloaded);
+
+					return { rendered: mod.render(data), serialized };
+				});
+
+				return templates.stream(res, 200, {
+					scripts: promise.then(({ serialized }) => {
+						const main = `<script src='${client.main_file}'></script>`;
+
+						if (serialized) {
+							return `<script>__SAPPER__ = { preloaded: ${serialized} };</script>${main}`;
+						}
+
+						return main;
+					}),
+					html: promise.then(({ rendered }) => rendered.html),
+					head: promise.then(({ rendered }) => `<noscript id='sapper-head-start'></noscript>${rendered.head}<noscript id='sapper-head-end'></noscript>`),
+					styles: promise.then(({ rendered }) => (rendered.css && rendered.css.code ? `<style>${rendered.css.code}</style>` : ''))
+				});
+			} else {
+				const { html, head, css } = mod.render(data);
+
+				const page = templates.render(200, {
+					scripts: `<script src='${client.main_file}'></script>`,
+					html,
+					head: `<noscript id='sapper-head-start'></noscript>${head}<noscript id='sapper-head-end'></noscript>`,
+					styles: (css && css.code ? `<style>${css.code}</style>` : '')
+				});
+
+				res.end(page);
+			}
+		}
+
+		else {
+			const 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) {
+				handler(req, res, next);
+			} else {
+				// no matching handler for method — 404
+				next();
+			}
+		}
+	}
+
+	return function find_route(req, res, next) {
+		const url = req.pathname;
 
 		// whatever happens, we're going to serve some HTML
 		res.set({
 			'Content-Type': 'text/html'
 		});
 
-		try {
+		resolved
-			for (const route of route_manager.routes) {
+			.then(() => {
-				if (route.test(url)) {
+				for (const route of route_manager.routes) {
-					req.params = route.exec(url);
+					if (route.test(url)) return handle_route(route, req, res, next, fn());
-
-					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(req)).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();
+				// no matching route — 404
-		} catch(err) {
+				next();
-			res.status(500);
+			})
-			res.end(templates.render(500, {
+			.catch(err => {
-				title: (err && err.name) || 'Internal server error',
+				res.status(500);
-				url,
+				res.end(templates.render(500, {
-				error: escape_html(err && (err.details || err.message || err) || 'Unknown error'),
+					title: (err && err.name) || 'Internal server error',
-				stack: err && err.stack.split('\n').slice(1).join('\n')
+					url,
-			}));
+					error: escape_html(err && (err.details || err.message || err) || 'Unknown error'),
-		}
+					stack: err && err.stack.split('\n').slice(1).join('\n')
+				}));
+			});
 	};
 }
 
@@ -207,7 +232,7 @@ function get_not_found_handler(fn) {
 			title: 'Not found',
 			status: 404,
 			method: req.method,
-			main: asset_cache.client.main_file,
+			scripts: `<script src='${asset_cache.client.main_file}'></script>`,
 			url: req.url
 		}));
 	};
@@ -236,3 +261,11 @@ function compose_handlers(handlers) {
 function read_json(file) {
 	return JSON.parse(fs.readFileSync(file, 'utf-8'));
 }
+
+function try_serialize(data) {
+	try {
+		return serialize(data);
+	} catch (err) {
+		return null;
+	}
+}

lib/templates.js

@@ -1,10 +1,22 @@
 const fs = require('fs');
 const glob = require('glob');
+const chalk = require('chalk');
 const chokidar = require('chokidar');
+const framer = require('code-frame');
+const { locate } = require('locate-character');
 const { dev } = require('./config.js');
 
 let templates;
 
+function error(e) {
+	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);
+}
+
 function create_templates() {
 	templates = glob.sync('*.html', { cwd: 'templates' })
 		.map(file => {
@@ -12,7 +24,24 @@ function create_templates() {
 			const status = file.replace('.html', '').toLowerCase();
 
 			if (!/^[0-9x]{3}$/.test(status)) {
-				throw new Error(`Bad template — should be a valid status code like 404.html, or a wildcard like 2xx.html`);
+				error({
+					title: `templates/${file}`,
+					body: `Bad template — should be a valid status code like 404.html, or a wildcard like 2xx.html`
+				});
+			}
+
+			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: `templates/${file}`,
+					body: `<script src='%sapper.main%'> is unsupported — use %sapper.scripts% (without the <script> tag) instead`,
+					url: 'https://github.com/sveltejs/sapper/issues/86',
+					frame
+				});
 			}
 
 			const specificity = (
@@ -31,10 +60,14 @@ function create_templates() {
 						return key in data ? data[key] : '';
 					});
 				},
-				stream: async (res, data) => {
+				stream: (res, data) => {
 					let i = 0;
 
-					do {
+					function stream_inner() {
+						if (i >= template.length) {
+							return;
+						}
+
 						const start = template.indexOf('%sapper', i);
 
 						if (start === -1) {
@@ -53,9 +86,14 @@ function create_templates() {
 						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]]);
+						return Promise.resolve(data[match[1]]).then(datamatch => {
-						i = end + 1;
+							res.write(datamatch);
-					} while (i < template.length);
+							i = end + 1;
+							return stream_inner();
+						});
+					}
+
+					return Promise.resolve().then(stream_inner);
 				}
 			};
 		})

package-lock.json

@@ -1,6 +1,6 @@
 {
   "name": "sapper",
-  "version": "0.2.10",
+  "version": "0.3.2",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -2114,12 +2114,14 @@
       "dependencies": {
         "abbrev": {
           "version": "1.1.0",
-          "bundled": true,
+          "resolved": "https://registry.npmjs.org/abbrev/-/abbrev-1.1.0.tgz",
+          "integrity": "sha1-0FVMIlZjbi9W58LlrRg/hZQo2B8=",
           "optional": true
         },
         "ajv": {
           "version": "4.11.8",
-          "bundled": true,
+          "resolved": "https://registry.npmjs.org/ajv/-/ajv-4.11.8.tgz",
+          "integrity": "sha1-gv+wKynmYq5TvcIK8VlHcGc5xTY=",
           "optional": true,
           "requires": {
             "co": "4.6.0",
@@ -2128,16 +2130,19 @@
         },
         "ansi-regex": {
           "version": "2.1.1",
-          "bundled": true
+          "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-2.1.1.tgz",
+          "integrity": "sha1-w7M6te42DYbg5ijwRorn7yfWVN8="
         },
         "aproba": {
           "version": "1.1.1",
-          "bundled": true,
+          "resolved": "https://registry.npmjs.org/aproba/-/aproba-1.1.1.tgz",
+          "integrity": "sha1-ldNgDwdxCqDpKYxyatXs8urLq6s=",
           "optional": true
         },
         "are-we-there-yet": {
           "version": "1.1.4",
-          "bundled": true,
+          "resolved": "https://registry.npmjs.org/are-we-there-yet/-/are-we-there-yet-1.1.4.tgz",
+          "integrity": "sha1-u13KOCu5TwXhUZQ3PRb9O6HKEQ0=",
           "optional": true,
           "requires": {
             "delegates": "1.0.0",
@@ -2146,36 +2151,43 @@
         },
         "asn1": {
           "version": "0.2.3",
-          "bundled": true,
+          "resolved": "https://registry.npmjs.org/asn1/-/asn1-0.2.3.tgz",
+          "integrity": "sha1-2sh4dxPJlmhJ/IGAd36+nB3fO4Y=",
           "optional": true
         },
         "assert-plus": {
           "version": "0.2.0",
-          "bundled": true,
+          "resolved": "https://registry.npmjs.org/assert-plus/-/assert-plus-0.2.0.tgz",
+          "integrity": "sha1-104bh+ev/A24qttwIfP+SBAasjQ=",
           "optional": true
         },
         "asynckit": {
           "version": "0.4.0",
-          "bundled": true,
+          "resolved": "https://registry.npmjs.org/asynckit/-/asynckit-0.4.0.tgz",
+          "integrity": "sha1-x57Zf380y48robyXkLzDZkdLS3k=",
           "optional": true
         },
         "aws-sign2": {
           "version": "0.6.0",
-          "bundled": true,
+          "resolved": "https://registry.npmjs.org/aws-sign2/-/aws-sign2-0.6.0.tgz",
+          "integrity": "sha1-FDQt0428yU0OW4fXY81jYSwOeU8=",
           "optional": true
         },
         "aws4": {
           "version": "1.6.0",
-          "bundled": true,
+          "resolved": "https://registry.npmjs.org/aws4/-/aws4-1.6.0.tgz",
+          "integrity": "sha1-g+9cqGCysy5KDe7e6MdxudtXRx4=",
           "optional": true
         },
         "balanced-match": {
           "version": "0.4.2",
-          "bundled": true
+          "resolved": "https://registry.npmjs.org/balanced-match/-/balanced-match-0.4.2.tgz",
+          "integrity": "sha1-yz8+PHMtwPAe5wtAPzAuYddwmDg="
         },
         "bcrypt-pbkdf": {
           "version": "1.0.1",
-          "bundled": true,
+          "resolved": "https://registry.npmjs.org/bcrypt-pbkdf/-/bcrypt-pbkdf-1.0.1.tgz",
+          "integrity": "sha1-Y7xdy2EzG5K8Bf1SiVPDNGKgb40=",
           "optional": true,
           "requires": {
             "tweetnacl": "0.14.5"
@@ -2183,21 +2195,24 @@
         },
         "block-stream": {
           "version": "0.0.9",
-          "bundled": true,
+          "resolved": "https://registry.npmjs.org/block-stream/-/block-stream-0.0.9.tgz",
+          "integrity": "sha1-E+v+d4oDIFz+A3UUgeu0szAMEmo=",
           "requires": {
             "inherits": "2.0.3"
           }
         },
         "boom": {
           "version": "2.10.1",
-          "bundled": true,
+          "resolved": "https://registry.npmjs.org/boom/-/boom-2.10.1.tgz",
+          "integrity": "sha1-OciRjO/1eZ+D+UkqhI9iWt0Mdm8=",
           "requires": {
             "hoek": "2.16.3"
           }
         },
         "brace-expansion": {
           "version": "1.1.7",
-          "bundled": true,
+          "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.7.tgz",
+          "integrity": "sha1-Pv/DxQ4ABTH7cg6v+A8K6O8jz1k=",
           "requires": {
             "balanced-match": "0.4.2",
             "concat-map": "0.0.1"
@@ -2205,51 +2220,61 @@
         },
         "buffer-shims": {
           "version": "1.0.0",
-          "bundled": true
+          "resolved": "https://registry.npmjs.org/buffer-shims/-/buffer-shims-1.0.0.tgz",
+          "integrity": "sha1-mXjOMXOIxkmth5MCjDR37wRKi1E="
         },
         "caseless": {
           "version": "0.12.0",
-          "bundled": true,
+          "resolved": "https://registry.npmjs.org/caseless/-/caseless-0.12.0.tgz",
+          "integrity": "sha1-G2gcIf+EAzyCZUMJBolCDRhxUdw=",
           "optional": true
         },
         "co": {
           "version": "4.6.0",
-          "bundled": true,
+          "resolved": "https://registry.npmjs.org/co/-/co-4.6.0.tgz",
+          "integrity": "sha1-bqa989hTrlTMuOR7+gvz+QMfsYQ=",
           "optional": true
         },
         "code-point-at": {
           "version": "1.1.0",
-          "bundled": true
+          "resolved": "https://registry.npmjs.org/code-point-at/-/code-point-at-1.1.0.tgz",
+          "integrity": "sha1-DQcLTQQ6W+ozovGkDi7bPZpMz3c="
         },
         "combined-stream": {
           "version": "1.0.5",
-          "bundled": true,
+          "resolved": "https://registry.npmjs.org/combined-stream/-/combined-stream-1.0.5.tgz",
+          "integrity": "sha1-k4NwpXtKUd6ix3wV1cX9+JUWQAk=",
           "requires": {
             "delayed-stream": "1.0.0"
           }
         },
         "concat-map": {
           "version": "0.0.1",
-          "bundled": true
+          "resolved": "https://registry.npmjs.org/concat-map/-/concat-map-0.0.1.tgz",
+          "integrity": "sha1-2Klr13/Wjfd5OnMDajug1UBdR3s="
         },
         "console-control-strings": {
           "version": "1.1.0",
-          "bundled": true
+          "resolved": "https://registry.npmjs.org/console-control-strings/-/console-control-strings-1.1.0.tgz",
+          "integrity": "sha1-PXz0Rk22RG6mRL9LOVB/mFEAjo4="
         },
         "core-util-is": {
           "version": "1.0.2",
-          "bundled": true
+          "resolved": "https://registry.npmjs.org/core-util-is/-/core-util-is-1.0.2.tgz",
+          "integrity": "sha1-tf1UIgqivFq1eqtxQMlAdUUDwac="
         },
         "cryptiles": {
           "version": "2.0.5",
-          "bundled": true,
+          "resolved": "https://registry.npmjs.org/cryptiles/-/cryptiles-2.0.5.tgz",
+          "integrity": "sha1-O9/s3GCBR8HGcgL6KR59ylnqo7g=",
           "requires": {
             "boom": "2.10.1"
           }
         },
         "dashdash": {
           "version": "1.14.1",
-          "bundled": true,
+          "resolved": "https://registry.npmjs.org/dashdash/-/dashdash-1.14.1.tgz",
+          "integrity": "sha1-hTz6D3y+L+1d4gMmuN1YEDX24vA=",
           "optional": true,
           "requires": {
             "assert-plus": "1.0.0"
@@ -2257,14 +2282,16 @@
           "dependencies": {
             "assert-plus": {
               "version": "1.0.0",
-              "bundled": true,
+              "resolved": "https://registry.npmjs.org/assert-plus/-/assert-plus-1.0.0.tgz",
+              "integrity": "sha1-8S4PPF13sLHN2RRpQuTpbB5N1SU=",
               "optional": true
             }
           }
         },
         "debug": {
           "version": "2.6.8",
-          "bundled": true,
+          "resolved": "https://registry.npmjs.org/debug/-/debug-2.6.8.tgz",
+          "integrity": "sha1-5zFTHKLt4n0YgiJCfaF4IdaP9Pw=",
           "optional": true,
           "requires": {
             "ms": "2.0.0"
@@ -2272,26 +2299,31 @@
         },
         "deep-extend": {
           "version": "0.4.2",
-          "bundled": true,
+          "resolved": "https://registry.npmjs.org/deep-extend/-/deep-extend-0.4.2.tgz",
+          "integrity": "sha1-SLaZwn4zS/ifEIkr5DL25MfTSn8=",
           "optional": true
         },
         "delayed-stream": {
           "version": "1.0.0",
-          "bundled": true
+          "resolved": "https://registry.npmjs.org/delayed-stream/-/delayed-stream-1.0.0.tgz",
+          "integrity": "sha1-3zrhmayt+31ECqrgsp4icrJOxhk="
         },
         "delegates": {
           "version": "1.0.0",
-          "bundled": true,
+          "resolved": "https://registry.npmjs.org/delegates/-/delegates-1.0.0.tgz",
+          "integrity": "sha1-hMbhWbgZBP3KWaDvRM2HDTElD5o=",
           "optional": true
         },
         "detect-libc": {
           "version": "1.0.2",
-          "bundled": true,
+          "resolved": "https://registry.npmjs.org/detect-libc/-/detect-libc-1.0.2.tgz",
+          "integrity": "sha1-ca1dIEvxempsqPRQxhRUBm70YeE=",
           "optional": true
         },
         "ecc-jsbn": {
           "version": "0.1.1",
-          "bundled": true,
+          "resolved": "https://registry.npmjs.org/ecc-jsbn/-/ecc-jsbn-0.1.1.tgz",
+          "integrity": "sha1-D8c6ntXw1Tw4GTOYUj735UN3dQU=",
           "optional": true,
           "requires": {
             "jsbn": "0.1.1"
@@ -2299,21 +2331,25 @@
         },
         "extend": {
           "version": "3.0.1",
-          "bundled": true,
+          "resolved": "https://registry.npmjs.org/extend/-/extend-3.0.1.tgz",
+          "integrity": "sha1-p1Xqe8Gt/MWjHOfnYtuq3F5jZEQ=",
           "optional": true
         },
         "extsprintf": {
           "version": "1.0.2",
-          "bundled": true
+          "resolved": "https://registry.npmjs.org/extsprintf/-/extsprintf-1.0.2.tgz",
+          "integrity": "sha1-4QgOBljjALBilJkMxw4VAiNf1VA="
         },
         "forever-agent": {
           "version": "0.6.1",
-          "bundled": true,
+          "resolved": "https://registry.npmjs.org/forever-agent/-/forever-agent-0.6.1.tgz",
+          "integrity": "sha1-+8cfDEGt6zf5bFd60e1C2P2sypE=",
           "optional": true
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-          "bundled": true,
+          "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.0.1.tgz",
+          "integrity": "sha1-YuIA8DmVWmgQ2N8KM//A8BNmLZg=",
           "requires": {
             "safe-buffer": "5.0.1"
           }
         },
         "stringstream": {
           "version": "0.0.5",
-          "bundled": true,
+          "resolved": "https://registry.npmjs.org/stringstream/-/stringstream-0.0.5.tgz",
+          "integrity": "sha1-TkhM1N5aC7vuGORjB3EKioFiGHg=",
           "optional": true
         },
         "strip-ansi": {
           "version": "3.0.1",
-          "bundled": true,
+          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz",
+          "integrity": "sha1-ajhfuIU9lS1f8F0Oiq+UJ43GPc8=",
           "requires": {
             "ansi-regex": "2.1.1"
           }
         },
         "strip-json-comments": {
           "version": "2.0.1",
-          "bundled": true,
+          "resolved": "https://registry.npmjs.org/strip-json-comments/-/strip-json-comments-2.0.1.tgz",
+          "integrity": "sha1-PFMZQukIwml8DsNEhYwobHygpgo=",
           "optional": true
         },
         "tar": {
           "version": "2.2.1",
-          "bundled": true,
+          "resolved": "https://registry.npmjs.org/tar/-/tar-2.2.1.tgz",
+          "integrity": "sha1-jk0qJWwOIYXGsYrWlK7JaLg8sdE=",
           "requires": {
             "block-stream": "0.0.9",
             "fstream": "1.0.11",
@@ -2821,7 +2925,8 @@
         },
         "tar-pack": {
           "version": "3.4.0",
-          "bundled": true,
+          "resolved": "https://registry.npmjs.org/tar-pack/-/tar-pack-3.4.0.tgz",
+          "integrity": "sha1-I74tf2cagzk3bL2wuP4/3r8xeYQ=",
           "optional": true,
           "requires": {
             "debug": "2.6.8",
@@ -2836,7 +2941,8 @@
         },
         "tough-cookie": {
           "version": "2.3.2",
-          "bundled": true,
+          "resolved": "https://registry.npmjs.org/tough-cookie/-/tough-cookie-2.3.2.tgz",
+          "integrity": "sha1-8IH3bkyFcg5sN6X6ztc3FQ2EByo=",
           "optional": true,
           "requires": {
             "punycode": "1.4.1"
@@ -2844,7 +2950,8 @@
         },
         "tunnel-agent": {
           "version": "0.6.0",
-          "bundled": true,
+          "resolved": "https://registry.npmjs.org/tunnel-agent/-/tunnel-agent-0.6.0.tgz",
+          "integrity": "sha1-J6XeoGs2sEoKmWZ3SykIaPD8QP0=",
           "optional": true,
           "requires": {
             "safe-buffer": "5.0.1"
@@ -2852,26 +2959,31 @@
         },
         "tweetnacl": {
           "version": "0.14.5",
-          "bundled": true,
+          "resolved": "https://registry.npmjs.org/tweetnacl/-/tweetnacl-0.14.5.tgz",
+          "integrity": "sha1-WuaBd/GS1EViadEIr6k/+HQ/T2Q=",
           "optional": true
         },
         "uid-number": {
           "version": "0.0.6",
-          "bundled": true,
+          "resolved": "https://registry.npmjs.org/uid-number/-/uid-number-0.0.6.tgz",
+          "integrity": "sha1-DqEOgDXo61uOREnwbaHHMGY7qoE=",
           "optional": true
         },
         "util-deprecate": {
           "version": "1.0.2",
-          "bundled": true
+          "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
+          "integrity": "sha1-RQ1Nyfpw3nMnYvvS1KKJgUGaDM8="
         },
         "uuid": {
           "version": "3.0.1",
-          "bundled": true,
+          "resolved": "https://registry.npmjs.org/uuid/-/uuid-3.0.1.tgz",
+          "integrity": "sha1-ZUS7ot/ajBzxfmKaOjBeK7H+5sE=",
           "optional": true
         },
         "verror": {
           "version": "1.3.6",
-          "bundled": true,
+          "resolved": "https://registry.npmjs.org/verror/-/verror-1.3.6.tgz",
+          "integrity": "sha1-z/XfEpRtKX0rqu+qJoniW+AcAFw=",
           "optional": true,
           "requires": {
             "extsprintf": "1.0.2"
@@ -2879,7 +2991,8 @@
         },
         "wide-align": {
           "version": "1.1.2",
-          "bundled": true,
+          "resolved": "https://registry.npmjs.org/wide-align/-/wide-align-1.1.2.tgz",
+          "integrity": "sha512-ijDLlyQ7s6x1JgCLur53osjm/UXUYD9+0PbYKrBsYisYXzCxN+HC3mYDNy/dWdmf3AwqwU3CXwDCvsNgGK1S0w==",
           "optional": true,
           "requires": {
             "string-width": "1.0.2"
@@ -2887,7 +3000,8 @@
         },
         "wrappy": {
           "version": "1.0.2",
-          "bundled": true
+          "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
+          "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8="
         }
       }
     },

package.json

@@ -1,6 +1,6 @@
 {
   "name": "sapper",
-  "version": "0.3.2",
+  "version": "0.4.0",
   "description": "Military-grade apps, engineered by Svelte",
   "main": "lib/index.js",
   "bin": {
@@ -19,11 +19,14 @@
   "dependencies": {
     "chalk": "^2.3.0",
     "chokidar": "^1.7.0",
+    "code-frame": "^5.0.0",
     "escape-html": "^1.0.3",
+    "locate-character": "^2.0.5",
     "mkdirp": "^0.5.1",
     "relative": "^3.0.2",
     "require-relative": "^0.8.7",
     "rimraf": "^2.6.2",
+    "serialize-javascript": "^1.4.0",
     "webpack": "^3.10.0",
     "webpack-hot-middleware": "^2.21.0"
   },

src/runtime/index.ts

@@ -68,10 +68,16 @@ function render(Component: ComponentConstructor, data: any, scroll: ScrollPositi
 	}
 }
 
-function prepare_route(Component, data) {
+function prepare_route(Component: ComponentConstructor, data: RouteData) {
-	return Promise.resolve(
+	if (!Component.preload) {
-		Component.preload ? Component.preload(data) : {}
+		return { Component, data };
-	).then(preloaded => {
+	}
+
+	if (!component && window.__SAPPER__ && window.__SAPPER__.preloaded) {
+		return { Component, data: Object.assign(data, window.__SAPPER__.preloaded) };
+	}
+
+	return Promise.resolve(Component.preload(data)).then(preloaded => {
 		Object.assign(data, preloaded)
 		return { Component, data };
 	});
@@ -176,10 +182,10 @@ export function prefetch(href: string) {
 }
 
 function handle_touchstart_mouseover(event: MouseEvent | TouchEvent) {
-        const a: HTMLAnchorElement = <HTMLAnchorElement>findAnchor(<Node>event.target);
+	const a: HTMLAnchorElement = <HTMLAnchorElement>findAnchor(<Node>event.target);
-        if (!a || a.rel !== 'prefetch') return;
+	if (!a || a.rel !== 'prefetch') return;
 
-        prefetch(a.href);
+	prefetch(a.href);
 }
 
 let inited: boolean;

test/app/package-lock.json

@@ -2722,9 +2722,9 @@
       "integrity": "sha1-5WqpTEyAVaFkBKBnS3jyFffI4ZQ="
     },
     "marked": {
-      "version": "0.3.7",
+      "version": "0.3.9",
-      "resolved": "https://registry.npmjs.org/marked/-/marked-0.3.7.tgz",
+      "resolved": "https://registry.npmjs.org/marked/-/marked-0.3.9.tgz",
-      "integrity": "sha512-zBEP4qO1YQp5aXHt8S5wTiOv9i2X74V/LQL0zhUNvVaklt6Ywa6lChxIvS+ibYlCGgADwKwZFhjC3+XfpsvQvQ=="
+      "integrity": "sha512-nW5u0dxpXxHfkHzzrveY45gCbi+R4PaO4WRZYqZNl+vB0hVGeqlFn0aOg1c8AKL63TrNFn9Bm2UP4AdiZ9TPLw=="
     },
     "math-expression-evaluator": {
       "version": "1.2.17",

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",

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
+	}));
+}

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>

test/app/routes/show-url.html

@@ -3,7 +3,7 @@
 <script>
 	export default {
 		preload({ url }) {
-			return { url };
+			if (url) return { url };
 		}
 	};
 </script>

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>

test/common/test.js

@@ -9,6 +9,12 @@ const fetch = require('node-fetch');
 run('production');
 run('development');
 
+Nightmare.action('page', {
+	title(done) {
+		this.evaluate_now(() => document.querySelector('h1').textContent, done);
+	}
+});
+
 function run(env) {
 	describe(`env=${env}`, function () {
 		this.timeout(20000);
@@ -62,52 +68,60 @@ function run(env) {
 			});
 		}
 
-		before(async () => {
+		before(() => {
 			process.chdir(path.resolve(__dirname, '../app'));
 
 			process.env.NODE_ENV = env;
 
+			let exec_promise = Promise.resolve();
+			let sapper;
+
 			if (env === 'production') {
 				const cli = path.resolve(__dirname, '../../cli/index.js');
-				await exec(`${cli} build`);
+				exec_promise = exec(`${cli} build`);
 			}
 
-			const resolved = require.resolve('../..');
+			return exec_promise.then(() => {
-			delete require.cache[resolved];
+				const resolved = require.resolve('../..');
-			const sapper = require(resolved);
+				delete require.cache[resolved];
+				sapper = require(resolved);
 
-			PORT = await getPort();
+				return getPort();
-			base = `http://localhost:${PORT}`;
+			}).then(port => {
+				PORT = port;
+				base = `http://localhost:${PORT}`;
 
-			global.fetch = (url, opts) => {
+				global.fetch = (url, opts) => {
-				if (url[0] === '/') url = `${base}${url}`;
+					if (url[0] === '/') url = `${base}${url}`;
-				return fetch(url, opts);
+					return fetch(url, opts);
-			};
+				};
 
-			let captured;
+				let captured;
-			capture = async fn => {
+				capture = fn => {
-				const result = captured = [];
+					const result = captured = [];
-				await fn();
+					return fn().then(() => {
-				captured = null;
+						captured = null;
-				return result;
+						return result;
-			};
+					});
+				};
 
-			const app = express();
+				const app = express();
 
-			app.use(serve('assets'));
+				app.use(serve('assets'));
 
-			app.use((req, res, next) => {
+				app.use((req, res, next) => {
-				if (captured) captured.push(req);
+					if (captured) captured.push(req);
-				next();
+					next();
-			});
+				});
 
-			middleware = sapper();
+				middleware = sapper();
-			app.use(middleware);
+				app.use(middleware);
 
-			return new Promise((fulfil, reject) => {
+				return new Promise((fulfil, reject) => {
-				server = app.listen(PORT, err => {
+					server = app.listen(PORT, err => {
-					if (err) reject(err);
+						if (err) reject(err);
-					else fulfil();
+						else fulfil();
+					});
 				});
 			});
 		});
@@ -137,173 +151,165 @@ function run(env) {
 				});
 			});
 
-			afterEach(async () => {
+			afterEach(() => {
-				await nightmare.end();
+				return nightmare.end();
 			});
 
-			it('serves /', async () => {
+			it('serves /', () => {
-				const title = await nightmare
+				return nightmare.goto(base).page.title().then(title => {
-					.goto(base)
+					assert.equal(title, 'Great success!');
-					.evaluate(() => document.querySelector('h1').textContent);
-
-				assert.equal(title, 'Great success!');
-			});
-
-			it('serves static route', async () => {
-				const title = await 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).wait(() => window.READY).wait(200);
-
-				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 () => {
+			it('serves static route', () => {
-				await nightmare
+				return nightmare.goto(`${base}/about`).page.title().then(title => {
+					assert.equal(title, 'About this site');
+				});
+			});
+
+			it('serves dynamic route', () => {
+				return nightmare.goto(`${base}/blog/what-is-sapper`).page.title().then(title => {
+					assert.equal(title, 'What is Sapper?');
+				});
+			});
+
+			it('navigates to a new page without reloading', () => {
+				return nightmare.goto(base).wait(() => window.READY).wait(200)
+					.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`)
 					.wait(() => window.READY)
 					.click('.goto')
 					.wait(() => window.location.pathname === '/blog/what-is-sapper')
-					.wait(100);
+					.wait(100)
-
+					.title()
-				assert.equal(
+					.then(title => {
-					await nightmare.evaluate(() => document.title),
+						assert.equal(title, 'What is Sapper?');
-					'What is Sapper?'
+					});
-				);
 			});
 
-			it('prefetches programmatically', async () => {
+			it('prefetches programmatically', () => {
-				await nightmare
+				return nightmare
 					.goto(`${base}/about`)
-					.wait(() => window.READY);
+					.wait(() => window.READY)
-
+					.then(() => {
-				const requests = await capture(async () => {
+						return capture(() => {
-					return await nightmare
+							return nightmare
-						.click('.prefetch')
+								.click('.prefetch')
-						.wait(100);
+								.wait(100);
-				});
+						});
-
+					})
-				assert.ok(!!requests.find(r => r.url === '/api/blog/why-the-name'));
+					.then(requests => {
+						assert.ok(!!requests.find(r => r.url === '/api/blog/why-the-name'));
+					});
 			});
 
-			it('scrolls to active deeplink', async () => {
+			it('scrolls to active deeplink', () => {
-				const scrollY = await nightmare
+				return nightmare
 					.goto(`${base}/blog/a-very-long-post#four`)
 					.wait(() => window.READY)
 					.wait(100)
-					.evaluate(() => window.scrollY);
+					.evaluate(() => window.scrollY)
-
+					.then(scrollY => {
-				assert.ok(scrollY > 0, scrollY);
+						assert.ok(scrollY > 0, scrollY);
+					});
 			});
 
-			it('reuses prefetch promise', async () => {
+			it('reuses prefetch promise', () => {
-				await nightmare
+				return nightmare
 					.goto(`${base}/blog`)
 					.wait(() => window.READY)
-					.wait(200);
+					.wait(200)
+					.then(() => {
+						return capture(() => {
+							return nightmare
+								.mouseover('[href="/blog/what-is-sapper"]')
+								.wait(200);
+						});
+					})
+					.then(mouseover_requests => {
+						assert.deepEqual(mouseover_requests.map(r => r.url), [
+							'/api/blog/what-is-sapper'
+						]);
 
-				const mouseover_requests = (await capture(async () => {
+						return capture(() => {
-					await nightmare
+							return nightmare
-						.mouseover('[href="/blog/what-is-sapper"]')
+								.click('[href="/blog/what-is-sapper"]')
-						.wait(200);
+								.wait(200);
-				})).map(r => r.url);
+						});
-
+					})
-				assert.deepEqual(mouseover_requests, [
+					.then(click_requests => {
-					'/api/blog/what-is-sapper'
+						assert.deepEqual(click_requests.map(r => r.url), []);
-				]);
+					});
-
-				const click_requests = (await capture(async () => {
-					await nightmare
-						.click('[href="/blog/what-is-sapper"]')
-						.wait(200);
-				})).map(r => r.url);
-
-				assert.deepEqual(click_requests, []);
 			});
 
-			it('cancels navigation if subsequent navigation occurs during preload', async () => {
+			it('cancels navigation if subsequent navigation occurs during preload', () => {
-				await nightmare
+				return nightmare
 					.goto(base)
 					.wait(() => window.READY)
 					.click('a[href="/slow-preload"]')
 					.wait(100)
 					.click('a[href="/about"]')
-					.wait(100);
+					.wait(100)
-
+					.then(() => nightmare.path())
-				assert.equal(
+					.then(path => {
-					await nightmare.path(),
+						assert.equal(path, '/about');
-					'/about'
+						return nightmare.title();
-				);
+					})
-
+					.then(title => {
-				assert.equal(
+						assert.equal(title, 'About');
-					await nightmare.evaluate(() => document.querySelector('h1').textContent),
+						return nightmare.evaluate(() => window.fulfil({})).wait(100);
-					'About this site'
+					})
-				);
+					.then(() => nightmare.path())
-
+					.then(path => {
-				await nightmare
+						assert.equal(path, '/about');
-					.evaluate(() => window.fulfil({}))
+						return nightmare.title();
-					.wait(100);
+					})
-
+					.then(title => {
-				assert.equal(
+						assert.equal(title, 'About');
-					await nightmare.path(),
+					});
-					'/about'
-				);
-
-				assert.equal(
-					await nightmare.evaluate(() => document.querySelector('h1').textContent),
-					'About this site'
-				);
 			});
 
-			it('passes entire request object to preload', async () => {
+			it('passes entire request object to preload', () => {
-				const html = await nightmare
+				return nightmare
 					.goto(`${base}/show-url`)
-					.evaluate(() => document.querySelector('p').innerHTML);
+					.wait(() => window.READY)
-
+					.evaluate(() => document.querySelector('p').innerHTML)
-				assert.equal(html, `URL is /show-url`);
+					.end().then(html => {
+						assert.equal(html, `URL is /show-url`);
+					});
 			});
 		});
 
 		describe('headers', () => {
-			it('sets Content-Type and Link...preload headers', async () => {
+			it('sets Content-Type and Link...preload headers', () => {
-				const { headers } = await get('/');
+				return get('/').then(({ headers }) => {
+					assert.equal(
+						headers['Content-Type'],
+						'text/html'
+					);
 
-				assert.equal(
+					assert.ok(
-					headers['Content-Type'],
+						/<\/client\/main.\w+\.js>;rel="preload";as="script", <\/client\/_.\d+.\w+.js>;rel="preload";as="script"/.test(headers['Link']),
-					'text/html'
+						headers['Link']
-				);
+					);
-
+				});
-				assert.ok(
-					/<\/client\/main.\w+\.js>;rel="preload";as="script", <\/client\/_.\d+.\w+.js>;rel="preload";as="script"/.test(headers['Link']),
-					headers['Link']
-				);
 			});
 		});
 	});

webpack/config.js

@@ -6,7 +6,12 @@ module.exports = {
 	client: {
 		entry: () => {
 			return {
-				main: entry.client
+				main: [
+					entry.client,
+					// workaround for https://github.com/webpack-contrib/extract-text-webpack-plugin/issues/456
+					'style-loader/lib/addStyles',
+					'css-loader/lib/css-base'
+				]
 			};
 		},