The amount of times I’ve seen this error over the last 5+ years, and until now I’ve not seen one comment mention it. Thank you you’ve restored my faith in people knowing what words mean. I’ve got to the point that if I see it in prose I stop reading because I assume the writer is an idiot.

Worse than that, the server can change it’s response based on user agent so you need to curl it to a file first, a browser could be served a completely different response.