Demo is broken https://drift.lol/

[nemanjam]

Describe the bug
I cant sign in with Github and acs.md file leads to http 500.

https://drift.lol/post/clkbtzp2q0001mn08hqsig1jx#acs.md

To Reproduce
Steps to reproduce the behavior:

1. Go to https://drift.maxleiter.com/ or https://drift.lol/
2. Click on Sign in with Github
3. It will redirect to this without logging in

https://drift.lol/?error=redirect_uri_mismatch&error_description=The+redirect_uri+MUST+match+the+registered+callback+URL+for+this+application.&error_uri=https%3A%2F%2Fdocs.github.com%2Fapps%2Fmanaging-oauth-apps%2Ftroubleshooting-authorization-request-errors%2F%23redirect-uri-mismatch&state=h9Vc0m0U4-DBS5gNJNVE7mpfYLJKh39Rvni8nBx5bzY