I was working on a problem using the New HTTP Request. When an API endpoint is expected to return text/html, the current New HTTP Request would require the user to download the file . I believe it would be helpful if the send message was capable of accepting "blob" or "text" arguments.
https://community.jmp.com/t5/Discussions/API-Response-Encoded-as-Gzip/m-p/82704#M37256