<!DOCTYPE html> <html> <body> <script src="/resources/testharness.js"></script> <script src="/resources/testharnessreport.js"></script> <script src="/resources/testdriver.js"></script> <script src="/resources/testdriver-vendor.js"></script> <script> 'use strict'; promise_test(async t => { await test_driver.set_permission({name: 'screen-wake-lock'}, 'denied'); return promise_rejects_dom(t, "NotAllowedError", navigator.wakeLock.request('screen')); }, 'Denied requests should abort with NotAllowedError'); </script> </body> </html>