From 7774e5a1ef860847afb52b511d0faf3b2d5cf61a Mon Sep 17 00:00:00 2001
From: Laurent Laubin <20232176+llaubin@users.noreply.github.com>
Date: Mon, 21 Apr 2025 14:13:10 +0200
Subject: [PATCH 1/2] Notify the end user if the serviceWorker is unavailable

---
 webapp/src/dl/index.ts  |  6 ++++++
 webapp/src/gui/index.ts | 10 ++++++++--
 2 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/webapp/src/dl/index.ts b/webapp/src/dl/index.ts
index 7582163..8b68834 100644
--- a/webapp/src/dl/index.ts
+++ b/webapp/src/dl/index.ts
@@ -26,6 +26,12 @@ function cleanupKey(key: string) {
 async function run() {
   const loc = window.location;
   const rootUrl = loc.origin + loc.pathname.replace("/dl","/");
+
+  if (navigator.serviceWorker == null) {
+    alert('No serviceWorker available ! Please note the feature may not be available in private mode in Firefox');
+    loc.replace(rootUrl);
+    return;
+  }
   try {
     await navigator.serviceWorker.register('./sw.js', {'scope': '/v1/download/'});
   }
diff --git a/webapp/src/gui/index.ts b/webapp/src/gui/index.ts
index 0ead45d..3367014 100644
--- a/webapp/src/gui/index.ts
+++ b/webapp/src/gui/index.ts
@@ -33,8 +33,14 @@ app.route('/', uploadView);
 
 const mountProm = app.mount('body');
 
-// Register service worker
-navigator.serviceWorker.register('./sw.js', {'scope': '/v1/download/'});
+// Test if serviceWorker is available, the feature may not be available in private mode in FF
+// see https://developer.mozilla.org/en-US/docs/Web/API/Navigator/serviceWorker
+if (navigator.serviceWorker == null) {
+  console.log('[**] No serviceWorker available, maybe due to FF in private mode ?');
+} else {
+ // Register service worker
+ navigator.serviceWorker.register('./sw.js', {'scope': '/v1/download/'});
+}
 
 export default async () => {
   await mountProm;

From cfd6125a40b744d0b18620df819690272ca95c14 Mon Sep 17 00:00:00 2001
From: Laurent Laubin <20232176+llaubin@users.noreply.github.com>
Date: Sun, 19 Oct 2025 09:35:55 +0200
Subject: [PATCH 2/2] Fix indentation...

---
 webapp/src/gui/index.ts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/webapp/src/gui/index.ts b/webapp/src/gui/index.ts
index 3367014..e0f170a 100644
--- a/webapp/src/gui/index.ts
+++ b/webapp/src/gui/index.ts
@@ -38,8 +38,8 @@ const mountProm = app.mount('body');
 if (navigator.serviceWorker == null) {
   console.log('[**] No serviceWorker available, maybe due to FF in private mode ?');
 } else {
- // Register service worker
- navigator.serviceWorker.register('./sw.js', {'scope': '/v1/download/'});
+  // Register service worker
+  navigator.serviceWorker.register('./sw.js', {'scope': '/v1/download/'});
 }
 
 export default async () => {