I was trying to tweak the web.config file for a web app my company uses to both improve the file's legibility as well as tweak performance and strictness of compilation and ended up making my normally wonderfully-running web app (seemingly start ignoring the UpdatePanels on the page, but mainly) start instantly showing this error upon clicking any web control:
The page was not displayed because the request entity is too large.
I searched on Google and now know this is an HTTP 413 error, but I have no idea what part of the web.config file I edited that caused this regression. Need to fix quick, as the site is already in production. Halp!
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