feat: response-rewrite plugin response header rewriting supports NGINX variables #4086
Description
Issue description
Background:
Current user feedback that the response-rewrite plug-in response header rewrite does not support NGINX variable mode. If you want to carry some parameters in the request (for example: cookie in the request header) into the response header, then the response-rewrite plug-in is implemented It's impossible.
Purpose:
If the response header of the response-rewrite plug-in supports NGINX variables, then we can achieve the above functions.
I think it is necessary for us to support response-rewrite plug-in response header rewriting to support NGINX variables.