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- <!DOCTYPE html>
- <html>
- <head>
- <script src="/resources/testharness.js"></script>
- <script src="/resources/testharnessreport.js"></script>
- </head>
- <body>
- <script type="module">
- import {MockMIDIService} from './resources/mock-midiservice.js';
- const mock = new MockMIDIService();
- promise_test(async _ => {
- const iframe = document.createElement('iframe');
- document.body.appendChild(iframe);
- const detachedNavigator = iframe.contentWindow.navigator;
- const detachedExceptionCtor = iframe.contentWindow.DOMException;
- document.body.removeChild(iframe);
- try {
- await detachedNavigator.requestMIDIAccess();
- return Promise.reject('requestMIDIAccess should have failed.');
- } catch (e) {
- assert_equals(e.constructor, detachedExceptionCtor);
- assert_equals(e.code, DOMException.ABORT_ERR);
- }
- }, 'requestMIDIAccess fails in a detached frame');
- </script>
- </body>
- </html>
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