Spring WebClient builder can't change content-type

Environment

Spring boot version: 2.4.1
implementation 'org.springframework.boot:spring-boot-starter-webflux'

Problem is

I changed MediaType as [application_json] using accept setter but webClient throw WebclientReponseException.

public Member getMember(String id) {
      Member member = webClient
              .mutate()
              .build()
              .get()
              .uri("/v1/api/member/id?id={id}", id)
              .accept(MediaType.APPLICATION_JSON)
              .retrieve()
              .bodyToMono(Member.class)
              .flux()
              .toStream()
              .findFirst()
              .orElse(null);

      return member;
}

org.springframework.web.reactive.function.client.WebClientResponseException: 200 OK from GET http://localhost:9090/v1/api/member/id?id=test; nested exception is org.springframework.web.reactive.function.UnsupportedMediaTypeException: Content type 'text/html;charset=UTF-8' not supported for bodyType=com.masterpiece.core.model.Member

Weired thing is

"The problem depends on uri structure."

/v1/api/member/id <- problem (throw UnsupportedMediaTypeException) /api/v1/member/id <- working properly

Comment From: coolshow9

This is my mistake. The Problem was Spring Security url permission.

Thanks!

Comment From: kvasim

This is my mistake. The Problem was Spring Security url permission.

Thanks!

what did you add for fix? plz share.

Comment From: Vishnu-mv

This is my mistake. The Problem was Spring Security url permission.

Thanks!

@kvasim , please share how you fixed it.