From e325c3a903472588db0d12c027d7ebff9f4949ad Mon Sep 17 00:00:00 2001
From: Valentin Gosu <valentin.gosu@gmail.com>
Date: Wed, 1 Dec 2021 09:23:31 +0000
Subject: [PATCH] Bug 1740914 - Default user-agent is used to get resources in
 iframes on Responsive Design Mode r=nika

Instead of calling `bc->GetUserAgentOverride()` we should have been calling
`bc->Top()->GetUserAgentOverride()` or `bc->GetCustomUserAgent()`.

Differential Revision: https://phabricator.services.mozilla.com/D132192
---
 netwerk/protocol/http/HttpBaseChannel.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/netwerk/protocol/http/HttpBaseChannel.cpp b/netwerk/protocol/http/HttpBaseChannel.cpp
index dc26c7f1ccb6..bda1ca248253 100644
--- a/netwerk/protocol/http/HttpBaseChannel.cpp
+++ b/netwerk/protocol/http/HttpBaseChannel.cpp
@@ -500,7 +500,8 @@ HttpBaseChannel::SetDocshellUserAgentOverride() {
     return NS_OK;
   }
 
-  const nsString& customUserAgent = bc->GetUserAgentOverride();
+  nsAutoString customUserAgent;
+  bc->GetCustomUserAgent(customUserAgent);
   if (customUserAgent.IsEmpty() || customUserAgent.IsVoid()) {
     return NS_OK;
   }