<!DOCTYPE HTML> <html> <head> <meta charset="utf-8"> <title>Test for Bug 341604</title> </head> <body onLoad="doStuff()"> I should be loaded by a form submit from a sandbox with 'allow-forms' </body> </html> <script> function doStuff() { window.parent.postMessage({ok: true, desc: "documents sandboxed with allow-forms should be able to submit forms"}, "*"); } </script>