write-read-on-detached-iframe.https.html (1975B)
1 <!doctype html> 2 <meta charset=utf-8> 3 <title>navigator.clipboard read and write on detached iframe</title> 4 <link rel='help' href='https://w3c.github.io/clipboard-apis/#async-clipboard-api'> 5 <script src="/resources/testharness.js"></script> 6 <script src="/resources/testharnessreport.js"></script> 7 <script src="/resources/testdriver.js"></script> 8 <script src="/resources/testdriver-vendor.js"></script> 9 <script src="../resources/user-activation.js"></script> 10 <iframe id="iframe"></iframe> 11 <script> 12 'use strict'; 13 14 promise_test(async t => { 15 // This tests proper behavior on a detaching iframe. text/plain is chosen for 16 // simplicity, and the test should fail the same way no matter what the input 17 // type is. 18 await tryGrantReadPermission(); 19 await tryGrantWritePermission(); 20 21 const iframe = document.getElementById('iframe'); 22 const iframeClipboard = iframe.contentWindow.navigator.clipboard; 23 const blobInput = new Blob(['test string'], {type: 'text/plain'}); 24 const clipboardItemInput = new ClipboardItem({'text/plain': blobInput}); 25 await waitForUserActivation(); 26 // Clipboard API must only be available in focused documents. 27 // reference: https://www.w3.org/TR/clipboard-apis/#privacy-async 28 iframe.focus(); 29 30 // Writing and reading should succeed on same-origin iframes. 31 await iframeClipboard.write([clipboardItemInput]); 32 const readResultAttached = await iframeClipboard.read(); 33 assert_not_equals(readResultAttached, undefined); 34 assert_equals(readResultAttached.length, 1, 35 'attached iframes should be able to read and write normally'); 36 37 iframe.parentNode.removeChild(iframe); 38 // Writing onto a detached iframe's clipboard should fail, but not crash. 39 await iframeClipboard.write([clipboardItemInput]); 40 const readResultDetached = await iframeClipboard.read(); 41 assert_equals(readResultDetached, undefined, 42 'reading from detached iframes should output undefined'); 43 }, 'Verify read and write fail on detached iframe'); 44 </script>