'use strict';
promise_test(async (t) => {
let iframe = document.createElement('iframe');
await new Promise(resolve => {
iframe.src = '../resources/open-in-iframe.html';
iframe.sandbox.add('allow-scripts');
iframe.allow = 'usb';
document.body.appendChild(iframe);
iframe.addEventListener('load', resolve);
});
await new Promise(resolve => {
window.addEventListener('message', t.step_func(messageEvent => {
assert_equals(messageEvent.data, 'Success');
resolve();
}));
iframe.contentWindow.postMessage('GetDevices', '*');
});
}, 'GetDevices from a sandboxed iframe is valid.');