ContributionsMost RecentMost LikesSolutionsModel missing Accept header Hey there, I am modeling an API that does different things depending on the value, and presence, of an Accept header. I have it modeled as follows in the Swagger YAML, and it should be correct for as much as I can understand: '/my-api/endpoint': get: summary: My summary. description: >- Blah blah blah. operationId: myOperationId parameters: - name: firstParam in: query description: Value to use. required: false schema: type: string responses: '200': description: Successful operation. content: application/vnd.my.format.one+json: schema: $ref: '#/components/schemas/MyFormatOneEntity' application/vnd.my.format.two+json: schema: $ref: '#/components/schemas/MyFormatTwoEntity' application/json: schema: $ref: '#/components/schemas/MyFormatOneEntity' "": schema: $ref: '#/components/schemas/LegacyFormatEntity' '*/*': schema: $ref: '#/components/schemas/MyFormatTwoEntity' The issue is, when I select the empty Accept header in SwaggerHub, the response preview is not taken from LegacyFormatEntity but from MyFormatTwoEntity. Looks like a bug to me, but maybe I am not modeling the case "there is no Accept header in the request" case. Anyone has ideas on how to actually do this, or how to send a bug report? Thanks in advance! Solved