Created attachment 344054 [details] Example HTML form which includes the passwordrules attribute The release notes for Preview 58 implies that the "passwordrules" attribute should be working now: https://webkit.org/blog/8327/safari-technology-preview-58-with-safari-12-features-is-now-available/ https://developer.apple.com/password-rules/ But testing this on Release 59, the attached HTML always generates a 20 character alpha-numeric password with hyphens (no percentage sign to be seen). I'm also aware that you need to close the tab and re-open the document to get a new 20 character password... otherwise WebKit will keep using the same generated password, even on page reload. And a note for other web developers... The rules I've used are there to test "passwordrules", I would not recommend these be used in a real system (max of 10 characters, you must be joking).
<rdar://problem/41700769>
The fix for this issue was needed outside the WebKit project, therefore this is being resolved as 'Moved'. This should now be fixed in shipping software.