Work around our not caching the intermediate CA...

net/http/http_cache.cc

 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "net/http/http_cache.h"
 
 #include <algorithm>
 
 #include "base/compiler_specific.h"
 #include "base/message_loop.h"
@@ skipping 834 matching lines @@
   if (result == OK) {
     const HttpResponseInfo* new_response = network_trans_->GetResponseInfo();
     if (new_response->headers->response_code() == 401 ||
         new_response->headers->response_code() == 407) {
       auth_response_ = *new_response;
     } else {
       // Are we expecting a response to a conditional query?
       if (mode_ == READ_WRITE) {
         if (new_response->headers->response_code() == 304) {
           // Update cached response based on headers in new_response
+          // TODO(wtc): should we update cached certificate
+          // (response_.ssl_info), too?
           response_.headers->Update(*new_response->headers);
           if (response_.headers->HasHeaderValue("cache-control", "no-store")) {
             cache_->DoomEntry(cache_key_);
           } else {
             WriteResponseInfoToEntry();
           }
 
           if (entry_) {
             cache_->ConvertWriterToReader(entry_);
             // We no longer need the network transaction, so destroy it.
@@ skipping 506 matching lines @@
 
   entry->pending_queue.erase(entry->pending_queue.begin());
 
   AddTransactionToEntry(entry, next);
 }
 
 //-----------------------------------------------------------------------------
 
 }  // namespace net