Oauth v2 generate token: Wrong Content Type is used on Chrome 4.12.0

[tavatir]

When generating new token on Chrome for the following case, content type of the request is set as "text/plain;charset=UTF-8", which fails for the endpoint I use. However, it is set correctly as "application/x-www-form-urlencoded" on Firefox for the same scenario.

Flow: Client Cridentials
Method: POST
Client authentication: Credentials in request body