Bug CustomEvent Android



I’m working on a ionic app that works fine on iOS and on all Android devices except Galaxy S3 (GT-18190 and GT-19300), Wiko CINK+ (and maybee other I’ve didn’t test). I’ve tested on a Nexus 7, a Nexus 5, other Android devices on all browser and it works fine. My app use javaScript “customEvent” and I wonder that this is the cause of problem but console logs return empty error.
This is a sample code to fire my custom event :

alert(“Custom start”);
alert(“Custom start end”);

The first alert is emitted but not the second one, on previously listed devices, the associated listener does not react.