x-aaccountid to X-Aaccountid header case change

[Alex Shevchenko]

Hi, I see that the HTTP header case has just recently changed in Jira Cloud responses from "x-aaccountid" to "X-Aaccountid". Is that expected?

Unfortunately this has broke my product integration. 

I understand that HTTP header names are case-insensitive, according to RFC 2616, but if the change was not intentional - that'd be great to revert to the old behavior. That'd safe my company from producing patches for earlier versions of our software integrating with Jira.

Thanks.