From 6567bb631a78033b6b4cc32bc93e07d837652276 Mon Sep 17 00:00:00 2001
From: wolfbeast <mcwerewolf@wolfbeast.com>
Date: Thu, 7 Feb 2019 12:58:13 +0100
Subject: Never let "localhost" get sent to a proxy.

Also make "No proxy for" editable always when usable.
---
 netwerk/base/nsProtocolProxyService.cpp | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'netwerk')

diff --git a/netwerk/base/nsProtocolProxyService.cpp b/netwerk/base/nsProtocolProxyService.cpp
index 26eca0e88..237a2a3bd 100644
--- a/netwerk/base/nsProtocolProxyService.cpp
+++ b/netwerk/base/nsProtocolProxyService.cpp
@@ -1841,6 +1841,13 @@ nsProtocolProxyService::Resolve_Internal(nsIChannel *channel,
     if (mPACMan && mPACMan->IsPACURI(uri))
         return NS_OK;
 
+    // If proxies are enabled and this host:port combo is supposed to use a
+    // proxy, check for a proxy.
+    if ((mProxyConfig == PROXYCONFIG_DIRECT) ||
+        !CanUseProxy(uri, info.defaultPort)) {
+        return NS_OK;
+    }
+
     bool mainThreadOnly;
     if (mSystemProxySettings &&
         mProxyConfig == PROXYCONFIG_SYSTEM &&
-- 
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