Swagger UI is sending wrong Accept header [Produces, text/plain, application/json]

I set produces to application/json, and try to use swagger UI to send a get request. But Swagger UI is sending text/plain Accept header.

What is even more strange, in devtools Network tab it is shown that Accept: application/json was sent.

And in devtools Console tab I get the following message:

The same error message is shown when I try to access this resource from the browser URL bar (but there I cannot set the Accept header).

swagger-ui version: 2.2.10

I tried all possible combinations in the swagger file, here is the relevant excerpt. /login path works fine.

swagger: '2.0'
info:
  version: 1.0.0
  title: Whole
  description: >
    Swagger
consumes:
  - application/json
  - text/plain
produces: [application/json]
basePath: '/api'
paths:
  /login:
    post:
      tags: [Login]
      description: Receives login credentials and returns token if credentials are valid
      parameters:
        - name: credentials
          in: body
          description: Credentials object with username and password
          required: true
          schema:
            $ref: '#/definitions/credentials'
      responses:
        '200':
          description: Valid token
          schema:
            $ref: "#/definitions/token"
        default:
          description: unexpected error
          schema:
            type: object
  /ingredients:
    get:
      tags: [Ingredients]
      description: Retrieves a list
      parameters: []
      responses:
        '200':
          description: Array of ingredients
          schema:
            type: array
            items:
              type: string

Similar issue is this one, but was closed without discussion: #2450 NOTE: I’m using node.js swagger2-koa to bind swagger.

[webron]

I tested with the current UI and the snippet you provided. Both the GET and POST produce the right headers.

[croraf]

The issue was related to my use of the library. https://github.com/carlansley/swagger2-koa/issues/13