joyent/node-http-signature — pull request #6 by geebee (2012-09-08 21:06:43+00:00)
Title: If x-date is available, ignore date and continue parsing the authorization with x-date

Fix for issue #4 to conditionally use the `x-date` header over the `date` header when working within the `authorization` header if it is available. If not, use the regular `date` header as before.