How does Custom Rules work?

[auduny]

Hi. I've tried to figure out how the "Custom Rule" works, but so far I'm not getting far

What I'm trying to do is to detect varnish hits from custom http-headers

Just to see if it works i added the following file

[ay@wpt:/var/www/webpagetest] production+* ± cat www/settings/customrules.txt
klemz=static

Where klemz is the name of the rule and "static" is a regexp i know exists within the value of some of the headers..

But It does not seem to work..

Anyone know how this works?

[auduny]

Bump. Anyone know how this functionality work, or if it's really implemented?

[pmeenan]

Currently the custom rules only work by scanning the requests for a matching mime type and then matching the custom rul against the body of the response (headers are excluded): https://github.com/WPO-Foundation/webpag...ks.cc#L579

Shouldn't be all that hard to change it to also match against headers.