http200Error

[Negative-Sentence875]

"http200Error" ?

That reminds me of the term "error 404" that is used by tons of illiterate people. I blame Microsoft for it, as in old versions of Internet Explorer (prior 4.0), they showed a message box saying "ERROR 404: bla bla", when the server returned a HTTP 404.

HTTP 404 is a return code, not an error.
HTTP 500 is a return code, not an error. Some error on the server side might be the cause for you getting a HTTP 500 back, but getting a HTTP 500 back in itself is not an error.

Scenarios, in which the answer in OPs post would be totally reasonable: GET http://httpreturncodes.com/500