Kibana version : 6.8.11
Elasticsearch version : 6.8.11
APM Server version : 6.8.11
APM Agent language and version : Java 1.25.0 & 1.21.0
Description of the problem including expected versus actual behavior. Please include screenshots (if relevant) :
I use APM server 6.8.11 to collect several servers apm data.
Webflux + APM Agent 1.25.0:
Webmvc + APM Agent 1.21.0:
The second pic shows that headers' key are all in lowercase. These mixed keys make the same header store different field in elasticsearch. The original headers are just like the first pic.
So why the second pic shows headers' key in lowercase and is there any way to make it standard?