From a29bd58b0cf10d35b3c797ffb8f711c9576eccd3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Mats=20T=C3=B6rnberg?= <mats.tornberg@gmail.com>
Date: Tue, 22 Sep 2026 10:31:38 +0200
Subject: [PATCH] fix(rum): restrict traceHeaderOrigins to same origin to
 prevent matrix CORS preflight failure

---
 public/index.html | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/public/index.html b/public/index.html
index 4da3169..6e2b3ea 100644
--- a/public/index.html
+++ b/public/index.html
@@ -11,7 +11,8 @@
     serviceName: "gibbz",
     baseUrl: "https://otel.k6n.net",
     release: window.__APP_RELEASE__ || "dev",
-    environment: "production"
+    environment: "production",
+    traceHeaderOrigins: [window.location.origin]
   }) : null;
 </script>
 </head>