While working on #1942 I noticed that in certain cases there can be a resource leak. E.g. in delete operations:

When JSONResponse parameter is nil, the response body is not closed, therefore the existing connection cannot be reused.

See https://golang.org/pkg/net/http/#Client.Do

If the returned error is nil, the Response will contain a non-nil Body which the user is expected to close. If the Body is not both read to EOF and closed, the Client's underlying RoundTripper (typically Transport) may not be able to re-use a persistent TCP connection to the server for a subsequent "keep-alive" request.

@jtopjian is it something that should be considered or do I dramatize things?

Relates to #1015