Demonstration of a neat trick using current architecture and implementations of Progressive Web Applications backbone (Web App Manifest). Tested on Android/Chrome&Firefox:

Installed the app already (if nothing happens install it manually from preferences - "add to Homescreen"
Users tested: 16
Cookie respawns for 8 users
Total cookie respawns: 18
For full description/explanation, read about: Persistent Web Apprehension here.
Lukasz Olejnik (@lukOlejnik)