280749 2024-10-02 02:28:11 -0700 serialization/deserialization during read/write operation of Clipboard APIs is different from other browsers 2024-11-18 16:01:24 -0800 1 1 1 Unclassified WebKit HTML Editing WebKit Nightly Build Unspecified Unspecified RESOLVED FIXED https://wpt.live/clipboard-apis/async-html-script-removal.https.html BrowserCompat, InRadar, WPTImpact P2 Normal --- 1 karlcow karlcow rniwa webkit-bug-importer wenson_hsieh oldest_to_newest 2064816 0 karlcow 2024-10-02 02:28:11 -0700 The test at https://wpt.live/clipboard-apis/async-html-script-removal.https.html is supposed to check the script tag removal while doing a clipboard write and read operation INPUT: "<title>Title of the document</title> <script>const a = 5;</script> <p>Hello World</p>" EXPECTED: "<head> <title>Title of the document</title> </head> <body> <p>Hello World</p> </body>" ACTUAL: "<head> </head> <body> <p style=\"caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0); font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;\">Hello World</p> </body> The script element has been correctly removed but: 1. <title> has not been preserved 2. The <head> and <body> elements have not been added 3. the style attribute has been added with some values. At this stage in the test, the content is already wrong. const blobText = await (new Response(blobOutput)).text(); The issue is happening in between these https://github.com/web-platform-tests/wpt/blob/b40c843d18efb71ab2f1343ce53e82d06cdf7702/clipboard-apis/async-html-script-removal.https.html#L39-L53 Something is not normalizing the same way, but which steps of the process. 1. new Blob([html_with_script], {type: 'text/html'}) ? 2. new ClipboardItem({'text/html': blobInput}) ? 3. navigator.clipboard.write([clipboardItem]) ? 4. await navigator.clipboard.read() ? 5. await (new Response(blobOutput)).text() ? 2064824 1 karlcow 2024-10-02 05:06:27 -0700 On the other hand I wonder if there is a specific required serialization apart of the sanitized version of html, aka removing the script element. Maybe the test could be adjusted to check that the script has been removed instead of checking the full html. https://w3c.github.io/clipboard-apis/#dom-clipboard-read https://w3c.github.io/clipboard-apis/#dom-clipboard-write yes the spec doesn't seem to mandate a way to write the HTML. 2064827 2 karlcow 2024-10-02 05:20:30 -0700 Similar serialization failure for https://wpt.fyi/results/clipboard-apis/async-write-html-read-html.https.html 2066456 3 webkit-bug-importer 2024-10-09 02:29:17 -0700 <rdar://problem/137577746> 2075763 4 karlcow 2024-11-18 01:01:03 -0800 Pull request: https://github.com/WebKit/WebKit/pull/36789 2075983 5 ews-feeder 2024-11-18 16:01:22 -0800 Committed 286766@main (f37595518038): <https://commits.webkit.org/286766@main> Reviewed commits have been landed. Closing PR #36789 and removing active labels.