catch exception from checkCircular

gadget_json_generated_form.js

@@ -82,7 +82,6 @@
     } else {
       absolute_url = new URL(url, base_url);
     }
-    checkCircular(g, path, absolute_url.href);
     return absolute_url;
   }
 
@@ -182,6 +181,7 @@
           });
       })
       .push(function (json) {
+        checkCircular(g, path, url);
         return resolveLocalReference(json, hash);
       })
       .push(undefined, function (err) {