Created attachment 28393 [details] patch Hi.. I stumbled on a couple of bugs in handling of AddOutputFilterByType in 2.4.1 when running mod_pagespeed's integration tests against it, which the attached patch should fix: 1) in filter_bytype, there is an off-by-one in writing the null termination of the types array. 2) In add_filter, only one of the ->types or ->expr fields is written, but the structure is allocated without zeroing, so you can end up with a junk value of the other field.
*** This bug has been marked as a duplicate of bug 52755 ***