script doesn't work for websites with specific host-variables

[CennoxX]

This script doesn't work for websites with two dots in the host-variable of the switch case statement.

In line 386, const host = location.hostname.split('.').slice(-2).join('.'); specifies that only the last two parts of the hostname are stored as host. So https://qastack.com.ua/ becomes com.ua as host. In the switch statement, however, it is compared to qastack.com.ua.

[vladgba]

I suggest you repeat my code and add host validation for this sites and redirection work to the "default" branch in switch. Like this:
switch (...){
...
default:
if (location.hostname.includes('qastack')) {
....}
}