I'm having problems running Belle in development mode with mocked data.

after running "grunt dev" i get the login page but after trying to login i get a blank page and a javascript error No url found for api name serverVarsJs

I've found somewhere that i should use no username and password but it doesn't allow leaving it empty. Using any username password combo makes no difference.

I'm on 7.0.1

Any ideas on what might be the problem?

Best regards

Fredrik