From a9bd24c6ef440dc07757af0f38388ec3318fcbe5 Mon Sep 17 00:00:00 2001
From: Markus Stange <mstange.moz@gmail.com>
Date: Tue, 30 Nov 2021 17:04:15 -0500
Subject: [PATCH] Remove User-Agent header again.

The addition of this header triggers the browser to send an
OPTIONS request with a CORS preflight request.
profiler-symbol-server doesn't currently know how to deal with this,
so symbolication with profiler-symbol-server is broken.
This works around it.
---
 src/profile-logic/mozilla-symbolication-api.js | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/src/profile-logic/mozilla-symbolication-api.js b/src/profile-logic/mozilla-symbolication-api.js
index 5283c42e97..dc34dd95d0 100644
--- a/src/profile-logic/mozilla-symbolication-api.js
+++ b/src/profile-logic/mozilla-symbolication-api.js
@@ -246,11 +246,6 @@ export function requestSymbols(
     body: JSON.stringify(body),
     method: 'POST',
     mode: 'cors',
-    // Use a profiler-specific user agent, so that the symbolication server knows
-    // what's making this request.
-    headers: new Headers({
-      'User-Agent': `FirefoxProfiler/1.0 (+${location.origin}) ${navigator.userAgent}`,
-    }),
   })
     .then((response) => response.json())
     .then(_ensureIsAPIResultV5);