From f833c39f6297df71277d375f6f92c0772a545879 Mon Sep 17 00:00:00 2001
From: Alexander Zinchuk <alx.zinchuk@gmail.com>
Date: Mon, 12 Jun 2023 11:55:47 +0200
Subject: [PATCH] [DEBUG] Investigate Service Worker issues (#3274)

---
 src/serviceWorker.ts           |  7 ++++---
 src/util/setupServiceWorker.ts | 21 +++++++++++++++------
 2 files changed, 19 insertions(+), 9 deletions(-)

diff --git a/src/serviceWorker.ts b/src/serviceWorker.ts
index 136ae3d1a..cc0c2f413 100644
--- a/src/serviceWorker.ts
+++ b/src/serviceWorker.ts
@@ -1,4 +1,3 @@
-import { DEBUG } from './config';
 import { respondForProgressive } from './serviceWorker/progressive';
 import { respondForDownload } from './serviceWorker/download';
 import { respondWithCache, clearAssetCache, respondWithCacheNetworkFirst } from './serviceWorker/assetCache';
@@ -17,8 +16,10 @@ const RE_NETWORK_FIRST_ASSETS = /\.(wasm|html)$/;
 const RE_CACHE_FIRST_ASSETS = /[\da-f]{20}.*\.(js|css|woff2?|svg|png|jpg|jpeg|tgs|json|wasm)$/;
 const ACTIVATE_TIMEOUT = 3000;
 
+const TEMP_DEBUG = true;
+
 self.addEventListener('install', (e) => {
-  if (DEBUG) {
+  if (TEMP_DEBUG) {
     // eslint-disable-next-line no-console
     console.log('ServiceWorker installed');
   }
@@ -28,7 +29,7 @@ self.addEventListener('install', (e) => {
 });
 
 self.addEventListener('activate', (e) => {
-  if (DEBUG) {
+  if (TEMP_DEBUG) {
     // eslint-disable-next-line no-console
     console.log('ServiceWorker activated');
   }
diff --git a/src/util/setupServiceWorker.ts b/src/util/setupServiceWorker.ts
index c7c790547..038c9fb6f 100644
--- a/src/util/setupServiceWorker.ts
+++ b/src/util/setupServiceWorker.ts
@@ -1,4 +1,4 @@
-import { DEBUG, DEBUG_MORE, IS_TEST } from '../config';
+import { DEBUG_MORE, IS_TEST } from '../config';
 import { getActions } from '../global';
 import { formatShareText } from './deeplink';
 import { IS_ANDROID, IS_IOS, IS_SERVICE_WORKER_SUPPORTED } from './windowEnvironment';
@@ -12,6 +12,8 @@ type WorkerAction = {
 
 const IGNORE_WORKER_PATH = '/k/';
 
+const TEMP_DEBUG = true;
+
 function handleWorkerMessage(e: MessageEvent) {
   const action: WorkerAction = e.data;
   if (DEBUG_MORE) {
@@ -52,7 +54,7 @@ if (IS_SERVICE_WORKER_SUPPORTED) {
         const registrations = await navigator.serviceWorker.getRegistrations();
         const ourRegistrations = registrations.filter((r) => !r.scope.includes(IGNORE_WORKER_PATH));
         if (ourRegistrations.length) {
-          if (DEBUG) {
+          if (TEMP_DEBUG) {
             // eslint-disable-next-line no-console
             console.log('[SW] Hard reload detected, re-enabling Service Worker');
           }
@@ -62,23 +64,30 @@ if (IS_SERVICE_WORKER_SUPPORTED) {
 
       await navigator.serviceWorker.register(new URL('../serviceWorker.ts', import.meta.url));
 
-      if (DEBUG) {
+      if (TEMP_DEBUG) {
         // eslint-disable-next-line no-console
         console.log('[SW] ServiceWorker registered');
       }
 
       await navigator.serviceWorker.ready;
 
+      // eslint-disable-next-line no-console
+      console.log('Service Worker', navigator.serviceWorker?.controller?.scriptURL);
+
       if (navigator.serviceWorker.controller) {
-        if (DEBUG) {
+        if (TEMP_DEBUG) {
           // eslint-disable-next-line no-console
           console.log('[SW] ServiceWorker ready');
         }
         subscribeToWorker();
       } else {
-        if (DEBUG) {
+        if (TEMP_DEBUG) {
           // eslint-disable-next-line no-console
           console.error('[SW] ServiceWorker not available');
+          // eslint-disable-next-line no-console
+          console.warn('Assigned registration', await navigator.serviceWorker.getRegistration());
+          // eslint-disable-next-line no-console
+          console.warn('Ready promise', navigator.serviceWorker?.ready);
         }
 
         if (!IS_IOS && !IS_ANDROID && !IS_TEST) {
@@ -86,7 +95,7 @@ if (IS_SERVICE_WORKER_SUPPORTED) {
         }
       }
     } catch (err) {
-      if (DEBUG) {
+      if (TEMP_DEBUG) {
         // eslint-disable-next-line no-console
         console.error('[SW] ServiceWorker registration failed: ', err);
       }