HttpFactory keeps adding 'Accept' headers

[hanssens]

When using HttpFactory in a DI scenario, e.g. like in services.AddHttpClient<SomeClient>(), it may keep adding Accept headers to the request. Eventually resulting in 400 BadRequest error. Not sure if its limited to registering it Transient or Singleton, either way this should not occur.

[hanssens]

Example response:

{"error":"[BadRequest] Method: GET, RequestUri: 'https://<some-endpoint>', 
Version: 1.1, 
Content: System.Net.Http.StringContent, 
Headers:\r\n{\r\n  apikey: <some-api-key> \r\n  
Accept: application/json\r\n  
Accept: application/json\r\n  
Accept: application/json\r\n  
Accept: application/json\r\n  
Accept: application/json\r\n  
Accept: application/json\r\n  
Accept: application/json\r\n  
Accept: application/json\r\n  
... etc.

Accept: application/json\r\n  
Request-Context: appId=cid-v1:e247526a-7e45-4e4f-8446-e470f0ec1d40\r\n  
Request-Id: |35e851730f03d94fae874d4f7204da3c.fe5192a33f62fd4c.\r\n  
traceparent: 00-35e851730f03d94fae874d4f7204da3c-fe5192a33f62fd4c-00\r\n  
Content-Type: application/json; charset=utf-8\r\n  
Content-Length: 0\r\n}"}

[hanssens]

Fixed in release v2.2.0.