From ddbf4022ee3208dc7647322fe7501e7c4794bfbf Mon Sep 17 00:00:00 2001
From: TkDodo <office@dorfmeister.cc>
Date: Tue, 17 Mar 2026 19:49:10 +0100
Subject: [PATCH] fix(router): filter out non-actionable errors from
 third-party scripts

---
 src/router.tsx | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/src/router.tsx b/src/router.tsx
index ecefda06..6d830ecb 100644
--- a/src/router.tsx
+++ b/src/router.tsx
@@ -53,6 +53,27 @@ if (typeof document !== 'undefined') {
     // Session Replay
     replaysSessionSampleRate: 0.1, // This sets the sample rate at 10%. You may want to change it to 100% while in development and then sample at a lower rate in production.
     replaysOnErrorSampleRate: 1.0, // If you're not already sampling the entire session, change the sample rate to 100% when sampling sessions where errors occur.
+    beforeSend(event) {
+      // Filter out errors from third-party ad tech scripts (e.g. Publift's
+      // Fuse Platform ftUtils.js) that are not actionable by us.
+      const frames = event.exception?.values?.flatMap(
+        (v) => v.stacktrace?.frames ?? [],
+      )
+      if (
+        frames &&
+        frames.length > 0 &&
+        frames.every((frame) => {
+          const filename = frame.filename ?? ''
+          return (
+            filename.includes('ftUtils.js') ||
+            filename.includes('fuseplatform.net')
+          )
+        })
+      ) {
+        return null
+      }
+      return event
+    },
   })
 
   deferSentryReplayIntegration()