While this would definitely work, all you really need to do is whitelist your dev server. It’s most likely localhost, but it could be different so run ionic run --livereload and it’ll show you something like this:
Setup Live Reload
Running live reload server: http://10.1.10.10:35729
Watching: 0=www/**/*, 1=!www/lib/**/*
Running dev server: http://10.1.10.10:8100
Whitelist your dev server by adding
<allow-navigation href="*://10.1.10.10*"/>
to config.xml and livereload should work.