Steps to reproduce:
1) Create a simple Cordova Android app with the InAppBrowser plugin pointing to a website. E.g. https://news.google.com
2) Navigate back and forth between different pages
3) Observe the history buttons on the toolbar
The Previous / Next arrow buttons should become highlighted or faded based on where in the page history the content is.
This behavior is standard on most browsers. The iOS InAppBrowser implements it too.
The Previous / Next buttons remain highlighted regardless of if it's possible to navigate back or forward in the content.
This was never implemented for Android so wasn't sure if Issue Type should be a Bug or Improvement. Left it at default.
I have a potential implementation. Will fork repo and trigger a pull request soon.