interagent/http-api-design — pull request #38 by keithamus (2014-07-23 12:15:06+00:00)
Title: s/Request-Id/X-Request-Id

`Request-Id` is not a standard HTTP header. Recommending it may cause the side effect of people using it without verifying if it is standard. Instead, recommending `X-Request-Id` still serves the purpose, while allowing people to explicitly see it is non standard.

Careful when clicking the Files Changed tab - this one's a biggy :wink: