Decode URL Safe Base64 in JavaScript (browser side)

Question

I am using Gmail\'s API to get emails from my account. The body of the message is delivered in a \"URL safe base64\" format. What is the best way to decode this for use? I h

Answer 1

For posterity,

atob(data.replace(/_/g, '/').replace(/-/g, '+'))

As stated by the spec https://tools.ietf.org/html/rfc4648#section-5 however because this uses atob() it does not support unicode characters and thus requires a polyfill.