My angular app runs from my mobile data but not from wifi connection.WTF
😵🤕

It is the mobile data stealer worm

Did you try switching this off and on?

Your fault for using angular 🙃

Hairpin NAT or something?

Switch off WiFi and reswitch 3g/4g

Switch off WiFi and reswitch 3g/4g

How about you rename your wifi to Mobile 4G

Where is the app hosted? If it is in your LAN it might be some DNS issue - I had to add my server's hostname to the hosts file of my other machines in order to access it inside the LAN using hostname instead of direct IP address