--- a/netwerk/protocol/http/PackagedAppVerifier.cpp
+++ b/netwerk/protocol/http/PackagedAppVerifier.cpp
@@ -77,17 +77,18 @@ NS_IMETHODIMP PackagedAppVerifier::Init(
   mListener = aListener;
   mState = STATE_UNKNOWN;
   mSignature = aSignature;
   mIsPackageSigned = false;
   mPackageCacheEntry = aPackageCacheEntry;
   mIsFirstResource = true;
   mManifest = EmptyCString();
 
-  NeckoOriginAttributes().PopulateFromOrigin(aPackageOrigin, mPackageOrigin);
+  bool success = NeckoOriginAttributes().PopulateFromOrigin(aPackageOrigin, mPackageOrigin);
+  NS_ENSURE_TRUE(success, NS_ERROR_FAILURE);
   mBypassVerification = (mPackageOrigin ==
       Preferences::GetCString("network.http.signed-packages.trusted-origin"));
 
   LOG(("mBypassVerification = %d\n", mBypassVerification));
   LOG(("mPackageOrigin = %s\n", mPackageOrigin.get()));
 
   nsresult rv;
   mPackagedAppUtils = do_CreateInstance(NS_PACKAGEDAPPUTILS_CONTRACTID, &rv);