diff --git a/src/pyj/srv.pyj b/src/pyj/srv.pyj
index 8ee9a8bba2..845f745b52 100644
--- a/src/pyj/srv.pyj
+++ b/src/pyj/srv.pyj
@@ -67,8 +67,5 @@ if document?:
         iframe_main(iframe_script)
     else:
         toplevel_main()
-        url = window.URL.createObjectURL(Blob([main_js()]), {'type': 'text/javascript'})
-        worker = new window.Worker(url + '#moo')
-        console.log(worker)
 elif self?:
     entry_point = self.location.hash[1:]