fix profile-route for application not on '/' (web-root)

[cdumke]

fix profile-route for application not on '/' (web-root), e.g. if application is on '/testapp' then the profile-route is '/testapp/profile'.

On homestead the full URL in this case is 'http://homestead.test/testapp/profile'.

Perhaps, this is useful for others.

Best regards

Carsten