记录 所有的req_headers

[arrow2012]

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在日志中要记录 请求头 ，使用 ${User_Agent}req_header 这种指定的变量 来记录指定的req_Header
但是在生产环境中 可能 用户有很多请求头，并且不是固定的，
nginx 可以通过 lua脚本来 获取req_headers 中的所有header

BFE 能否记录所有的req_Header Key和value 如下图

[iyangsj]

@arrow2012 感谢你的关注和反馈！后续版本会考虑支持