graphite-project/graphite-web — pull request #936 by andrewbaxter (2014-09-05 08:29:19+00:00)
Title: Log exceptions from render url callbacks

Currently tracebacks are placed in the server error page, but for render callbacks this is typically ignored since the receiving end is expecting an image.

Specifically, graphite-web Dashboard and Browser just show a broken image symbol, and nothing shows up in the logs (AFAICT, I have DEBUG=True and any other settings that looked relevant).