The documentation for WebKitFileChooserRequest starts with: "Whenever the user interacts with an <input type='file' /> HTML element," which is copied literally into the generated documentation, resulting in a real HTML input element as part of the documentation. devhelp lets me click on it and select a file (nothing will happen with the selected file). Oops.
Pull request: https://github.com/WebKit/WebKit/pull/7266
Committed 257563@main (3bc9e9da7c32): <https://commits.webkit.org/257563@main> Reviewed commits have been landed. Closing PR #7266 and removing active labels.