From c59c121c80f4814d7ec805fa72aa36eefb5415c8 Mon Sep 17 00:00:00 2001
From: Josh Matthews <josh@joshmatthews.net>
Date: Wed, 11 Mar 2015 13:00:38 -0400
Subject: [PATCH] Bug 1142124 - Never revalidate cache entries for synthesized
 responses. r=michal

---
 netwerk/protocol/http/nsHttpChannel.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/netwerk/protocol/http/nsHttpChannel.cpp b/netwerk/protocol/http/nsHttpChannel.cpp
index 0fd7c3269be3..ede32f31e429 100644
--- a/netwerk/protocol/http/nsHttpChannel.cpp
+++ b/netwerk/protocol/http/nsHttpChannel.cpp
@@ -3149,6 +3149,10 @@ nsHttpChannel::OnCacheEntryCheck(nsICacheEntry* entry, nsIApplicationCache* appC
             mRedirectedCachekeys->AppendElement(cacheKey);
     }
 
+    if (doValidation && mInterceptCache == INTERCEPTED) {
+        doValidation = false;
+    }
+
     mCachedContentIsValid = !doValidation;
 
     if (doValidation) {