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Customizeable

#1. Intercept back using popstate event (with coachmark)

Add user interactivity to the page as stated in one of the chromium bugs

ref: https://stackoverflow.com/questions/57339098/chrome-popstate-not-firing-on-back-button-if-no-user-interaction

Disclaimer

  1. The flow of using before pop state has the best appearance so far and works as charm

  2. It's even able to customize the popup dialog

  3. The downsides is that, it will not work if the page is opened directly

Compatibility

ChromeSafari