Bearer with QR Code

(Proposal)
To allow a user to use a mobile app client we want to provide a method for a user to voluntarily share their existing Bearer auth token.
Thisproposal is to generate a QR code that is the Bearer token
e.g. On the top-right menu there's an menu item "Login in as me" which when selected displays a QR code of the
text,
"Bearer "+ localStorage["authToken"]

Various QR code generators exist. Pick one which is well supported, client-side and small library. The QR code should have error correction. Perhaps this one-

https://github.com/soldair/node-qrcode