Control: severity -1 normal Robin, thanks for your bug report!
I'm using web.py myself, behind an nginx frontend. In my case, static content is served by nginx, which is probably the most common case. For special cases, I use custom code for serving static files. Therefore, I never realized, that there is a bug in web.py regarding static files. I suggest, to look into the possibility of using one of the two approaches for your web application.