I have different problems depending on the version of Android (4.4, 5.0 …):
Is crosswalk a pre-equisite for using Ionic 2?
Crosswalk is technically an important optimization to have for an app running on Android 4.4 or lower, not a pre-requisite. That said in many cases replacing the WebView from an old system with crosswalk solves many problems.
Thanks for your answer.