diff --git a/netwerk/protocol/http/nsCORSListenerProxy.cpp b/netwerk/protocol/http/nsCORSListenerProxy.cpp
index 8d4cd487ba..add904092a 100644
--- a/netwerk/protocol/http/nsCORSListenerProxy.cpp
+++ b/netwerk/protocol/http/nsCORSListenerProxy.cpp
@@ -556,8 +556,13 @@ nsCORSListenerProxy::CheckRequestApproved(nsIRequest* aRequest)
   // Check if the request failed
   nsresult status;
   nsresult rv = aRequest->GetStatus(&status);
-  NS_ENSURE_SUCCESS(rv, rv);
-  NS_ENSURE_SUCCESS(status, status);
+  if (NS_FAILED(rv)) {
+    return rv;
+  }
+
+  if (NS_FAILED(status)) {
+    return status;
+  }
 
   // Test that things worked on a HTTP level
   nsCOMPtr<nsIHttpChannel> http = do_QueryInterface(aRequest);