SUMMARY OF FINDINGS
HTTP requests to appleid.apple.com are rejected with 502 Bad Gateway if the User-Agent string contains any case variation of "X11; Linux".
Isn't Apple ID supposed to work for Apple gear?
Maybe they got complaints, maybe they got it fixed, maybe it wasn't intended. There are many reasons why it works now.
Fun thing is I was talking about this today during lunch and at least the person I was talking with also said that he was wondering why this happens, so I guess it just got the needed attention to get fixed.
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