I had the same fear: A flood of emails will welcome me every morning. But as I just have about 90 users I got 20 mails maximum a day. The positive effect is, that if I get many mails, I know my users have a problem as a javascript error most possibly hinders them to use my site properly. And as they often don’t report errors because they think they are doing something wrong I can get a lot more fixed this way.

Whenever you have your implementation, let me know. I wanted to do the stack trace as well but smelled too much work.

I quite like your implementation, and plan to make my own (PHP wise), possibly including a bit more stack trace (from browsers that support it (e.g. Firefox/Safari))

I guess my other fear on this one, has been the potential for a flood of email… but I suppose that would only happen if tons of users hit (or the same user repeatedly) the issue… alas, a few dozen emails is nothing, if I can get a “real-time” bug reporting system in place, such that I can find/fix a problem even before the end user has a chance to “officially” report it.

Thanks for the inspiration!