--- a/dom/plugins/base/nsPluginHost.cpp
+++ b/dom/plugins/base/nsPluginHost.cpp
@@ -3379,17 +3379,18 @@ nsresult nsPluginHost::NewPluginURLStrea
   // form |nsDocShell::OnLinkClickSync| bug 166613
   rv = NS_NewChannel(getter_AddRefs(channel),
                      url,
                      requestingNode,
                      nsILoadInfo::SEC_ALLOW_CROSS_ORIGIN_DATA_INHERITS |
                      nsILoadInfo::SEC_FORCE_INHERIT_PRINCIPAL,
                      nsIContentPolicy::TYPE_OBJECT_SUBREQUEST,
                      nullptr,  // aLoadGroup
-                     listenerPeer);
+                     listenerPeer,
+                     nsIRequest::LOAD_NORMAL | nsIChannel::LOAD_CLASSIFY_URI);
   NS_ENSURE_SUCCESS(rv, rv);
 
   if (doc) {
     // And if it's a script allow it to execute against the
     // document's script context.
     nsCOMPtr<nsIScriptChannel> scriptChannel(do_QueryInterface(channel));
     if (scriptChannel) {
       scriptChannel->SetExecutionPolicy(nsIScriptChannel::EXECUTE_NORMAL);