test for hidden scripts before shortening

lib/session.js

@@ -176,9 +176,9 @@ exports.create = function (conn, debuggerPort, config) {
     }
     scripts.forEach(function(s) {
       var hidden;
-      s.url = shorten(s.path);
       hidden = config.hidden &&
           config.hidden.some(function(r) { return r.test(s.url); });
+      s.url = shorten(s.path);
       sourceIDs[s.sourceID] = { url: s.url, hidden: hidden };
       delete s.path;
       if (!hidden) {