We've discussed this in the past (https://lists.webkit.org/pipermail/webkit-dev/2011-April/016431.html). That thread ended with a call for data. Today, I bring examples and statistics.
Briefly, from a histogram we added a while ago, I find that 2.3% of all users encounter at least one such modal dialog every week. This is much larger than I expected. I think it means that it's not just web developers who encounter them while debugging their pages. To me, this makes a very strong case for disallowing them. Here are some examples of sites that show an alert when their pages are unloaded: http://ddl.vidplayer.net/ http://www.buenosprofesionales.com/ http://www.watchsaleshop.com/ http://52-teurseu.blogspot.com/ http://aaz-armor.blogspot.com/ The last two sites above are just two examples out of hundreds of such blogs. Of course, alerts are also used for debugging. The proposed patch in https://bugs.webkit.org/show_bug.cgi?id=56397 turns alerts into console messages. Console messages can now be made to persist across page loads, so I think this helps address the debugging use case. _______________________________________________ webkit-dev mailing list [email protected] http://lists.webkit.org/mailman/listinfo.cgi/webkit-dev

