From aec9e598b27433d2f7c75a01d5a06730c21edf72 Mon Sep 17 00:00:00 2001
From: Claude <developers@lethean.io>
Date: Sat, 21 Feb 2026 13:08:17 +0000
Subject: [PATCH] fix(pwa): add mutex around concurrent DataNode.AddData call

Race detector found concurrent writes to DataNode.files map
from download goroutines. Protect with the existing mutex.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
---
 pkg/pwa/pwa.go | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/pkg/pwa/pwa.go b/pkg/pwa/pwa.go
index ce7af06..e490b9d 100644
--- a/pkg/pwa/pwa.go
+++ b/pkg/pwa/pwa.go
@@ -217,7 +217,9 @@ func (p *pwaClient) DownloadAndPackagePWA(pwaURL, manifestURL string, bar *progr
 		if path == "" {
 			path = "index.html"
 		}
+		mu.Lock()
 		dn.AddData(path, body)
+		mu.Unlock()
 
 		// Parse HTML for additional assets
 		if parseHTML && isHTMLContent(resp.Header.Get("Content-Type"), body) {