paulbellamy/mango — pull request #21 by sunfmin (2012-03-26 06:48:41+00:00)
Title: Base64 URLEncoding could generate "-", So it's not safe to use "--" as sign separator. I encounter this tricky bug quite frequently

...n seperator http://tip.golang.org/src/pkg/encoding/base64/base64.go?s=783:870#L12