HTTP 500 / HTTP 401 error when logging into https://pair.sharing.io/

[RobertKielty]

Over the past few weeks I encountered an access and authentication problem when trying to logon to Pair with my Github account.

I now have a workaround, here is a write up of the problem and the workaround

Steps to reproduce the problem

Visit https://pair.sharing.io/login
Click on the Login button
Expected behavior : Successful logon, the New and All buttons.
Actual behavior: See HTTP 500 error

If I then reloaded the page I would see a more detailed error where a stack trace that showed a HTTP 401 indicating an issue with bad credentials

Workaround

1. Revoke access to pair.sharing.io as follows :

On Github Profile go to
Settings > Integrations Applications > Authorized Oauth Apps (tab on rhs) > click on pair.sharing.io from the list
Click on the Revoke Access Button

2. Revisit https://pair.sharing.io/login
3. Authorize pair.sharing.io to use your Github account

Normal behavior should be restored.