unolm

Thanks for your response!

But that doesn't solve the problem.
I can modify user table. Make emails and names lowercase directly. Add triggers to make sure everything will come lowercase.
But I can't ensure that when user would be logging in the field comparison would be case insensitive.

And it would be better to not modify or fork casdoor codebase to have less troubles later on updates.

Currently I have patched casdoor image and adding custom js file in the web/build/index.html that automatically loads my custom js.
Script in turn enforces lowercase in the fields and will do couple more beautifications for interface.
This way I can make sure that casdoor will register and later log in users properly.

Ofc it's in no way beautiful solution...