Implement headers attributes in ForeignFetchResponse

third_party/WebKit/Source/modules/fetch/FetchManager.cpp

 // Copyright 2014 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 "modules/fetch/FetchManager.h"
 
 #include "bindings/core/v8/ExceptionState.h"
 #include "bindings/core/v8/ScriptPromiseResolver.h"
 #include "bindings/core/v8/ScriptState.h"
 #include "bindings/core/v8/V8ThrowException.h"
@@ skipping 313 matching lines @@
             taintedResponse = responseData->createOpaqueRedirectFilteredResponse();
         }
         // When the location header doesn't exist, we don't treat the response
         // as a redirect response, and execute tainting.
     }
     if (!taintedResponse) {
         switch (tainting) {
         case FetchRequestData::BasicTainting:
             taintedResponse = responseData->createBasicFilteredResponse();
             break;
-        case FetchRequestData::CORSTainting:
-            taintedResponse = responseData->createCORSFilteredResponse();
+        case FetchRequestData::CORSTainting: {
+            HTTPHeaderSet headerNames;
+            extractCorsExposedHeaderNamesList(response, headerNames);
+            taintedResponse = responseData->createCORSFilteredResponse(headerNames);
             break;
+        }
         case FetchRequestData::OpaqueTainting:
             taintedResponse = responseData->createOpaqueFilteredResponse();
             break;
         }
     }
 
     Response* r = Response::create(m_resolver->getExecutionContext(), taintedResponse);
     if (response.url().protocolIsData()) {
         // An "Access-Control-Allow-Origin" header is added for data: URLs
         // but no headers except for "Content-Type" should exist,
@@ skipping 388 matching lines @@
     loader->dispose();
 }
 
 DEFINE_TRACE(FetchManager)
 {
     visitor->trace(m_loaders);
     ContextLifecycleObserver::trace(visitor);
 }
 
 } // namespace blink