- Source
- RFC 9110, section 15.3.5
This is a success with nothing to say. The request worked, and the response ends after its headers, because a 204 can't carry any content at all.
It's what a save button wants. The spec expects you to stay on the page you're looking at, with your work still in front of you, which is why your log is still in the box. It also leaves it to the client to tell you it worked, because the server isn't going to. Crew tell us this is also how Starfleet Command gives feedback.