After splash screen blank home screen

Webpage not available
The webpage at could not be loaded because:

Did Firewall settings "keeping the port open"
Restarted wifi laptop tablet and phone as well but no result.
App running well in browser.
Please help me out from this problem.
@mhartington please help us.

It is running in only Moto devices.
But not running on other device. Is it the problem of mobile browsers ?

Got the Solution while remote debugging on crome.
return [];
service.js have some wrong code.
Dont know still this was running in moto g devices.