Describe the bug when I set request header in json format, I found that the request header was parsed as an expression and then truncated.

Sample 286861862-8e09ffdc-ec62-48b8-9713-71bedd42b3f5

Comment From: hyfsy

spring-cloud-starter-openfeign: 3.1.4

Comment From: OlgaMaciaszek

Hello @hyfsy. Spring Cloud OpenFeign 3.1.x is no longer under maintenance. Please upgrade to 4.0.x. or 4.1.x. Also, the relates to RequestTemplate that is part of the OpenFeign/Feign project and not SC OpenFeign. You can start a discussion on it there.

Comment From: OlgaMaciaszek

Also duplicate of https://github.com/spring-cloud/spring-cloud-openfeign/issues/893/.