From 5f1c1f9f2e04bd2d10c62570d89317b633ef8f28 Mon Sep 17 00:00:00 2001
From: Max <maksfreetimer@yandex.ru>
Date: Fri, 1 Feb 2019 10:32:39 +0300
Subject: [PATCH] service-worker: error on "fetch" event

Chrome 70.0.3538.110
Sometimes i get this error: `Uncaught (in promise) TypeError: Failed to execute 'fetch' on 'ServiceWorkerGlobalScope': 'only-if-cached' can be set only with 'same-origin' mode
---
 service-worker.js | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/service-worker.js b/service-worker.js
index 58701699..a775bf25 100644
--- a/service-worker.js
+++ b/service-worker.js
@@ -69,6 +69,9 @@ self.addEventListener('notificationclick', function(event) {
 
 // This is needed for 'Add to Home Screen'.
 self.addEventListener('fetch', function(event) {
+    if (event.request.cache === 'only-if-cached' && event.request.mode !== 'same-origin') {
+        return;
+    }
 	event.respondWith(
     //  Try to find response in cache.
     caches.match(event.request)