Swagger UI overrides accept header parameter - openApi 3.0

Q&A (please complete the following information)

• OS: macOS
• Browser: chrome
• Swagger/OpenAPI version: OpenAPI 3.

Content & configuration

Swagger/OpenAPI definition:

paths:
  /v1/auth/login:
    post:
      tags:
        - admin
      summary: Login
      operationId: loginAdmin
      description: |
        Realiza o login na aplicação
      responses:
        '200':
          description: login success
        '422':
          description: 'invalid input, object invalid'
      parameters:
        - name: Content-Type
          in: header
          required: true
          schema:
            type: string
            example: application/json
            default: application/json
        - name: Accept
          in: header
          required: true
          schema:
            type: string
            example: application/json
            default: application/json

Problem:

My header when testing always converts accpet to * / * and I need to keep it fixed in application / json

Screenshots

[sillekyatha]

How can the same be achieved with Get requests without request body?

[osteel]

Same issue here. Made sure to upgrade to the latest version (3.49.0) but it still sets the accept header to */* instead of application/vnd.api+json for GET requests with no response body.

EDIT: a GET request with no response body might sound weird, but it’s because the corresponding endpoint has no request body nor response body. If I change it for a POST request instead, the issue remains the same because Swagger UI still doesn’t have a request body to determine the accept header from.