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Comment by Clex | Hacker News Reader

You test the URL with a HEAD method that often 404. You should try with GET instead.

A server should respond with the same headers to a HEAD request as to a GET one.

SHOULD and DOES are not the same thing.

Returning 405 'Method Not Allowed' on a HEAD isn't unreasonable, and that is the issue we are seeing.

EDIT: did say GET on prior edit.

> Returning 405 'Method Not Allowed' on a GET isn't unreasonable

I think you meant "on a HEAD".

er yes, my bad. Fixed

They should, but many good sites just don't, for whatever reason. Even ones you know are run by smart people:

  $ curl -I -X HEAD https://redis.io/
  HTTP/1.1 404 Not Found

For this app, being more forgiving is a better idea.