From 28bfe2b179897773b310052cf6fbc4401497f4d1 Mon Sep 17 00:00:00 2001
From: Simon Knott <info@simonknott.de>
Date: Mon, 11 Nov 2024 13:54:18 +0100
Subject: [PATCH] chore(service worker): 404 if there's no client

---
 packages/trace-viewer/src/sw/main.ts | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/packages/trace-viewer/src/sw/main.ts b/packages/trace-viewer/src/sw/main.ts
index 6fcb08daa7..a10056e643 100644
--- a/packages/trace-viewer/src/sw/main.ts
+++ b/packages/trace-viewer/src/sw/main.ts
@@ -77,6 +77,8 @@ async function doFetch(event: FetchEvent): Promise<Response> {
 
   const request = event.request;
   const client = await self.clients.get(event.clientId);
+  if (!client)
+    return new Response(null, { status: 404 });
 
   // When trace viewer is deployed over https, we will force upgrade
   // insecure http subresources to https. Otherwise, these will fail