is it possible to use multiple sub_filter in one location?

[Florin Andrei]

I've solved it by recompiling Nginx to include the 
nginx_substitutions_filter module:

https://github.com/yaoweibin/ngx_http_substitutions_filter_module

This module allows multiple subs_filter statements per location. Seems 
to work just fine in my tests.

-- 
Florin Andrei
http://florin.myip.org/