<html> <body> <script> // Helper methods. function ok(a, msg) { parent.postMessage({ check: !!a, msg }, "*") } function is(a, b, msg) { ok(a === b, msg); } function finish() { parent.postMessage({ done: true }, "*"); } </script> <script id="a" nomodule>42</script> <script> // Let's test the behavior of nomodule attribute and noModule getter/setter. var a = document.getElementById("a"); ok(!("noModule" in a), "When modules are disabled HTMLScriptElement.noModule is not defined"); </script> <script>var foo = 42;</script> <script nomodule>foo = 43;</script> <script> is(foo, 43, "nomodule attribute is ignored when modules are disabled"); finish(); </script> </body> </html>