Disable XURL.Post from automatically setting the Headers

[nielsrietkerk]

I'm currently working on a project for RecordPoint and I have to upload binaries to their API. The problem I encounter with the code below is that their API doesn't accept the Header Transfer-Encoding that is automatically set. I have asked them if they can solve this on their end but that could take a long time.

Example of XURL.post request
var result = XURL.post("https://httpbin.org/post", File.openRead("c:/Projects/test.docx"));

To solve this I tried to create the body myself to prevent XURL.post from setting the Transfer-Encoding header (see code below). This workaround failed because the Content-Length header was automatically set and was based on the Base64 string and not on the number of bytes of the original file.

Example of workaround
var file = File.openRead("c:/Projects/test.docx");
var body = "data:application/octet-stream;base64," :: Stream.getText(Encode.toBase64(file));
var result = XURL.post("https://httpbin.org/post", body);

All that said, it would be very helpfull if there is a way to disable XURL from automatically setting the headers to be more flexibel in these kind of situations.