rtomayko/rack-cache — pull request #83 by nirvdrum (2013-05-09 13:11:03+00:00)
Title: Rescue StandardError instead of Exception so things like interrupts continue to work.

I lack the historical context for the original rescue clauses (dating back to 2009) and don't know if there was a store implementation that would raise an exception that didn't descend from StandardError. But swallowing all exceptions can lead to some unexpected behavior, especially in a multi-threaded environment.