A sender that generates a message containing a payload body SHOULD
   generate a Content-Type header field in that message unless the
   intended media type of the enclosed representation is unknown to the
   sender.  If a Content-Type header field is not present, the recipient
   MAY either assume a media type of "application/octet-stream"
   ([RFC2046], Section 4.5.1) or examine the data to determine its type.

Thread.current[:net_http_skip_default_content_type] = true

def self.apply!
  Net::HTTPGenericRequest.prepend(PatchDefaultContentType)
end

module PatchDefaultContentType
  def supply_default_content_type
    return if Thread.current[:net_http_skip_default_content_type]

    super
  end
end