Mobile - Android debugging (adb)
How to debug mobile issues
You can connect your mobile to your computer to see your mobile screen on your computer and also see console output from Chrome. So you can put logs into your code and see what is happening.
Install adb (android-tools-adb)
Restart adb server
In Chrome
you can then run
In Chrome
open Developer Tools (F12)
and click on three dots
in upper right corner, then More Tools > Remote Devices
to see list of attached devices.