IE 8 Crashing on failed login

Philip,

I have been using our django-axes project with success on one of my projects, but recently ran into an issue where users on IE8 were receiving an error:

Exception Value: Data truncated for column 'http_accept' at row 1

I traced it back to an overly large http accept header coming from the XP IE8 clients. I wasn't sure what a reasonable value for the http_accept field was, so I boosted it to 1024. Seems to work great now.

Thanks for the great work!
-Justin