Pages with frames nested more than 1 level deep from the main frame that also have redirects at those deep frames were broken by r48687. This is because child frames now care that *ALL* of their ancestors have finished loading, instead of just their direct parents. But frames don't tell all of their descendants they finished, only their direct children. The fix is to have frames tell all of their descendants when they finish loading.
Created attachment 41916 [details] Notify all descendants, not just child frames.
Comment on attachment 41916 [details] Notify all descendants, not just child frames. I would like the test better if it documented success better. The most helpful text in the test is in meta-redirect-to-notify-done.html and that text does not display. In the grandparent it would be good to say a word or two about what a successful result looks like.
Committed r50116. http://trac.webkit.org/changeset/50116