Bug 918773 - set responseXML.referrer to the empty string. r=jst

--HG--
extra : rebase_source : e537ea45eb0ce380059830d615c35f5ab76e37e3

dom/base/nsIDocument.h

@@ -344,6 +344,10 @@ public:
     return mUpgradeInsecureRequests;
   }
 
+  void SetReferrer(const nsACString& aReferrer) {
+    mReferrer = aReferrer;
+  }
+
   /**
    * Set the principal responsible for this document.
    */

dom/xhr/XMLHttpRequestMainThread.cpp

@@ -1966,6 +1966,9 @@ XMLHttpRequestMainThread::OnStartRequest(nsIRequest *request, nsISupports *ctxt)
                                          !isCrossSite);
     NS_ENSURE_SUCCESS(rv, rv);
 
+    // the spec requires the response document.referrer to be the empty string
+    mResponseXML->SetReferrer(NS_LITERAL_CSTRING(""));
+
     mXMLParserStreamListener = listener;
     rv = mXMLParserStreamListener->OnStartRequest(request, ctxt);
     NS_ENSURE_SUCCESS(rv, rv);

testing/web-platform/meta/XMLHttpRequest/responsexml-document-properties.htm.ini

@@ -1,8 +1,5 @@
 [responsexml-document-properties.htm]
   type: testharness
-  [referrer]
-    expected: FAIL
-
   [cookie]
     expected: FAIL