hostWhitelist issue

Hi, I'm trying to enable any domain or subdomain to be accessible to my Fastboot App. However I get a `hostWhitelist` error. So far I've tried the following Regex without any success:

1.` /[-a-zA-Z0-9@:%_\+.~#?&//=]{2,256}\.[a-z]{2,4}\b(\/[-a-zA-Z0-9@:%_\+.~#?&//=]*)?/`
2. `/./g`

Any suggestion on how can I either disable the hostWhitelist or allow any domain on it?
Before last update I was able to make it work with `/./g` but since last update it doesn't work anymore.

Thanks
Ivan