From 4e4f7607c06b05c299d0911f30aa769d93fa4e03 Mon Sep 17 00:00:00 2001
From: Ergun Erdogmus <ergunsh@chromium.org>
Date: Thu, 8 Jan 2026 16:33:42 +0100
Subject: [PATCH] test: fix flaky network test by normalizing accept-language
 header

---
 tests/tools/network.test.js.snapshot | 2 +-
 tests/utils.ts                       | 4 ++++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/tests/tools/network.test.js.snapshot b/tests/tools/network.test.js.snapshot
index 7ec05add2..420d92cea 100644
--- a/tests/tools/network.test.js.snapshot
+++ b/tests/tools/network.test.js.snapshot
@@ -3,7 +3,7 @@ exports[`network > network_get_request > should get request from previous naviga
 ## Request http://localhost:<port>/one
 Status:  [success - 200]
 ### Request Headers
-- accept-language:en-US,en;q=0.9
+- accept-language:<lang>
 - upgrade-insecure-requests:1
 - user-agent:<user-agent>
 - sec-ch-ua:"Chromium";v="<version>", "Not A(Brand";v="24"
diff --git a/tests/utils.ts b/tests/utils.ts
index fb64156b4..c2d005ef1 100644
--- a/tests/utils.ts
+++ b/tests/utils.ts
@@ -211,6 +211,10 @@ export function stabilizeResponseOutput(text: unknown) {
 
   const savedSnapshot = /Saved snapshot to (.*)/g;
   output = output.replaceAll(savedSnapshot, 'Saved snapshot to <file>');
+
+  const acceptLanguageRegEx = /accept-language:.*\n/g;
+  output = output.replaceAll(acceptLanguageRegEx, 'accept-language:<lang>\n');
+
   return output;
 }