Namecheap two-factor auth XSS issue

Anyone else having an issue enabling the namecheap two-factor authentication feature?

I'm getting the following JSON when enabling it after input of my password.

{"Result":null,"Error":true,"Msg":"Possible threat XSS","Errors":null,"MsgType":0}

I have already filed a report on this to namecheap november of last year. I did a follow up on december but they said they are still working on it. I tried it today and the issue is still reproducible.