Add nginx_ngx_cache_purge
I could not locate much info on setting nginxs’ proxy to purge
explicitly/conditionally some pages.
Found a module that may do the same.
Url:
http://labs.frickle.com/nginx\_ngx\_cache\_purge/
Please evaluate to include as package.
If the current ngx_http_proxy_module can achieve the feature, it may
be ignored.
(from redmine: issue id 1772, created on 2013-04-06)