From ec1db3fc34761b0bcfe8e8fcac80494713889efc Mon Sep 17 00:00:00 2001
From: Rich Harris <richard.a.harris@gmail.com>
Date: Sat, 3 Mar 2018 21:41:26 -0500
Subject: [PATCH] fix and update service worker

---
 app/service-worker.js | 5 ++++-
 app/template.html     | 6 +++---
 2 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/app/service-worker.js b/app/service-worker.js
index 542371d..e7f27f4 100644
--- a/app/service-worker.js
+++ b/app/service-worker.js
@@ -37,8 +37,11 @@ self.addEventListener('fetch', event => {
 	// don't try to handle e.g. data: URIs
 	if (!url.protocol.startsWith('http')) return;
 
+	// ignore dev server requests
+	if (url.hostname === self.location.hostname && url.port !== self.location.port) return;
+
 	// always serve assets and webpack-generated files from cache
-	if (cached.has(url.pathname)) {
+	if (url.host === self.location.host && cached.has(url.pathname)) {
 		event.respondWith(caches.match(event.request));
 		return;
 	}
diff --git a/app/template.html b/app/template.html
index a7e7d49..5dc665a 100644
--- a/app/template.html
+++ b/app/template.html
@@ -10,9 +10,9 @@
 	<link rel='icon' type='image/png' href='/favicon.png'>
 
 	<script>
-		// if ('serviceWorker' in navigator) {
-		// 	navigator.serviceWorker.register('/service-worker.js');
-		// }
+		if ('serviceWorker' in navigator) {
+			navigator.serviceWorker.register('/service-worker.js');
+		}
 	</script>
 
 	<!-- Sapper generates a <style> tag containing critical CSS