From 3e4dffd7a4d488a18c195fe82d593737ed168193 Mon Sep 17 00:00:00 2001
From: Sean Engelhardt <sean.f.t.engelhardt@gmail.com>
Date: Tue, 5 Mar 2019 14:06:36 +0100
Subject: [PATCH] Add Service Work(e|a)r(round)

uses the promise in returned by .bootstrapModule
to register the serviceworker if required.
Seems to work reliable, even in unstable environments.
Requires production mode to comprehend.
(at least ng build --prod)
---
 client/src/main.ts | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/client/src/main.ts b/client/src/main.ts
index cbf340b02..f9561edd5 100644
--- a/client/src/main.ts
+++ b/client/src/main.ts
@@ -10,4 +10,9 @@ if (environment.production) {
 
 platformBrowserDynamic()
     .bootstrapModule(AppModule)
+    .then(() => {
+        if ('serviceWorker' in navigator && environment.production) {
+            navigator.serviceWorker.register('ngsw-worker.js');
+        }
+    })
     .catch(err => console.log(err));