| <!DOCTYPE html> |
| <title>Module scripts with scripting disabled</title> |
| <meta name="author" title="Mozilla" href="mailto:yhuang@mozilla.com"> |
| <meta name="help" href="https://html.spec.whatwg.org/#creating-a-javascript-module-script"> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| |
| <script> |
| // Test that when scripting is disabled, a module script with a syntax error |
| // doesn't cause errors to be reported, per: |
| // https://html.spec.whatwg.org/#creating-a-javascript-module-script |
| // Step 1: If scripting is disabled, set source to empty string |
| |
| async_test((t) => { |
| window.addEventListener('load', t.step_func(() => { |
| const iframe = document.createElement('iframe'); |
| // sandbox attribute without "allow-scripts" disables scripting in the frame |
| iframe.sandbox.value = ''; |
| |
| let errorOccurred = false; |
| iframe.onerror = () => { |
| errorOccurred = true; |
| }; |
| |
| iframe.onload = t.step_func_done(() => { |
| // The module should load without reporting errors even though it has a syntax error |
| // because scripting is disabled in this frame |
| assert_false(errorOccurred, 'No error should be reported when loading module with syntax error when scripting is disabled'); |
| }); |
| |
| // Create an HTML document with a module script that has a syntax error |
| const html = '<!DOCTYPE html>' + |
| '<html>' + |
| '<head>' + |
| ' <script type="module">' + |
| ' // This would normally be a syntax error, but when scripting is disabled,' + |
| ' // the source is replaced with an empty string, so no error occurs' + |
| ' this is invalid javascript syntax )(' + |
| ' <\/script>' + |
| '<\/head>' + |
| '<body>' + |
| ' Frame loaded' + |
| '<\/body>' + |
| '<\/html>'; |
| |
| const blob = new Blob([html], { type: 'text/html' }); |
| const url = URL.createObjectURL(blob); |
| iframe.src = url; |
| document.body.appendChild(iframe); |
| })); |
| }, 'Module script with syntax error should not report error when scripting is disabled'); |
| </script> |
