Dear community:
I submitted PR[1] to help gateway developers quickly troubleshoot problems. After enabling this feature, the information of metadata, selector and rule (in JSON format) will be written in the response header, which is very effective in troubleshooting problems. Two conditions are required to enable this feature: 1. `shenyu.debug.enable=true` is configed in `application.yml` of `shenyu-bootstrap`; 2. set `debug` request header to `true` or `enable`; If you are free, please check the PR[1]. If you have a better idea, please leave a message. Looking forward to your reply. dragon-zhang [1] https://github.com/apache/incubator-shenyu/pull/3715
