It seems that the useCapture flag has a pretty good support on desktop browsers.
In this page: https://developer.mozilla.org/en-US/docs/Web/API/EventTarget/addEventListener, at the bottom there is a compatibility table, but it's incomplete for mobile.
So my question is: can i use the useCapture flag on those devices: Android, IE Mobile, Opera Mobile, Safari Mobile?
After a little research, I concluded that it should work the same on those mobiles.
Chrome works the same on android: What are differences between Chrome on Android and Desktop Chrome?
Opera browser on android might works the same than the desktop version: http://www.opera.com/blogs/india/2015/05/which-is-the-best-opera-browser-for-android-phones/
For the main part, safari mobile might work the same as safari desktop: Desktop Safari ( Mac & Windows ) VS Mobile Safari (iPhone) - HTML, CSS, JS support
Ie mobile should work like ie11 desktop: https://en.wikipedia.org/wiki/Internet_Explorer_Mobile
