Shows error messages in the inspector when .respondWith() is called with wrong responses.

Source/web/ServiceWorkerGlobalScopeProxy.cpp

Index: Source/web/ServiceWorkerGlobalScopeProxy.cpp
diff --git a/Source/web/ServiceWorkerGlobalScopeProxy.cpp b/Source/web/ServiceWorkerGlobalScopeProxy.cpp
index 3d0a55410be7a00e2c8ef9842758a1dc75683b9d..18c9d7e1dd4e11a24c9c217963385c2cd8bc31c5 100644
--- a/Source/web/ServiceWorkerGlobalScopeProxy.cpp
+++ b/Source/web/ServiceWorkerGlobalScopeProxy.cpp
@@ -98,7 +98,7 @@ void ServiceWorkerGlobalScopeProxy::dispatchActivateEvent(int eventID)
 void ServiceWorkerGlobalScopeProxy::dispatchFetchEvent(int eventID, const WebServiceWorkerRequest& webRequest)
 {
     ASSERT(m_workerGlobalScope);
-    RespondWithObserver* observer = RespondWithObserver::create(m_workerGlobalScope, eventID, webRequest.mode(), webRequest.frameType());
+    RespondWithObserver* observer = RespondWithObserver::create(m_workerGlobalScope, eventID, webRequest.url(), webRequest.mode(), webRequest.frameType());
     bool defaultPrevented = false;
     Request* request = Request::create(m_workerGlobalScope, webRequest);
     request->headers()->setGuard(Headers::ImmutableGuard);