Description
When the device is offline / has no internet access, the app still allows sending a request to 127.0.0.1 or localhost. But custom domains mapped to the device are ignored.
I have a development setup where IIS serves as local web server for development, with a custom domain that is mapped to 127.0.0.1 in the device's hosts file. When trying to send a request to this domain without internet access, Nightingale refuses to send the request and shows an "Internet Unavailable" message. When I do have internet, the request is sent.
I think that rather than specifically allowing only 127.0.0.1 and localhost when offline, the app should first attempt to resolve the domain name, and in case the domain can be resolved and points to 127.0.0.1, the request should go through. Only if the device cannot resolve the domain name, or if the domain points to an external IP address, should Nightingale refuse to send the request.