FORM Replay - NGinx integration via LUA
Related to #1192 (closed).
It,s was said in the below tickek ,that was the static way of NGINX who not allow the dynamic injection.
As you already use lua integration to render dynamicly header. You could exploit lua for injecting code directly in page.
https://github.com/openresty/lua-nginx-module#body_filter_by_lua