Clicking the YouTube link on this page https://online.hillsdale.edu/page.aspx?pid=1893 while using Version 6.0.3 (8536.28.10, 537+ will not link.
Released Safari works fine. This problem first came up about a week ago.
I added Bug 114242 which appears to cover the same issue with more details and other triggers, so this bug should be marked as a duplicate.
Indeed, reverse duping to a bug with more information.
Jim, I remember seeing this bug's title, but it sounded like a good thing (works in Safari and broken in other browsers maybe?). I probably didn't have the time to read it carefully, so I glossed over it.
To avoid such misunderstanding in the future, you can put "REGRESSION" in the title when something works in latest shipping Safari/WebKit, but is broken in nightlies.
*** This bug has been marked as a duplicate of bug 114242 ***