Does sparkle support multipart/form-data

Just wondering .. does sparkle support multipart/form-data. With delphi 10.3.1 thttpclient has issue with wrongly generated boundary (extra -- in first part9 and Indy drives me crazy with encoding problems.

Server-side, yes, it can receive multipart data. Client side, you would have to build the multipart content your self, and then send as bytes.