I attempted to change my admin url.
Originally I was going to set it up on a subdomain but apparently followed a bad or outdated tutorial. I changed "Use Custom Admin URL" to
Yes and then "Custom Admin URL" to
https://admin.example.com/admin_abc123. I also configured apache and dns for the subdomain but I'm not sure that's relevant.
It didn't initially work, so I attempted to revert by modifying these values in the database to what they were.
But now I get an infinite redirect. When I go to https://admin.example.com/admin_abc123/ I appear to be redirected to https://admin.example.com/admin_abc123/admin_abc123/admin/.....
And I get an error:
This page isn’t working
example.com redirected you too many times.
How can I solve this issue?
Edit: Also tried
php bin/magento setup:config:set --backend-frontname="admin_abc123" which showed a success message but did not fix the problem.