44 lines
1.9 KiB
HTML
44 lines
1.9 KiB
HTML
<!doctype html>
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<meta charset=utf-8>
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<title>navigator.clipboard read and write on detached iframe</title>
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<link rel='help' href='https://w3c.github.io/clipboard-apis/#async-clipboard-api'>
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<script src="/resources/testdriver.js"></script>
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<script src="/resources/testdriver-vendor.js"></script>
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<script src="../resources/user-activation.js"></script>
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<iframe id="iframe"></iframe>
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<script>
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'use strict';
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promise_test(async t => {
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// This tests proper behavior on a detaching iframe. text/plain is chosen for
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// simplicity, and the test should fail the same way no matter what the input
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// type is.
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await tryGrantReadPermission();
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await tryGrantWritePermission();
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const iframe = document.getElementById('iframe');
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const iframeClipboard = iframe.contentWindow.navigator.clipboard;
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const blobInput = new Blob(['test string'], {type: 'text/plain'});
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const clipboardItemInput = new ClipboardItem({'text/plain': blobInput});
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await waitForUserActivation();
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// Clipboard API must only be available in focused documents.
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// reference: https://www.w3.org/TR/clipboard-apis/#privacy-async
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iframe.focus();
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// Writing and reading should succeed on same-origin iframes.
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await iframeClipboard.write([clipboardItemInput]);
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const readResultAttached = await iframeClipboard.read();
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assert_not_equals(readResultAttached, undefined);
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assert_equals(readResultAttached.length, 1,
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'attached iframes should be able to read and write normally');
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iframe.parentNode.removeChild(iframe);
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// Writing onto a detached iframe's clipboard should fail, but not crash.
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await iframeClipboard.write([clipboardItemInput]);
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const readResultDetached = await iframeClipboard.read();
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assert_equals(readResultDetached, undefined,
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'reading from detached iframes should output undefined');
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}, 'Verify read and write fail on detached iframe');
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</script>
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