"ReferenceError: Set is not defined" and Uncaught ReferenceError: customElements is not defined

[riinamdar]

Uncaught ReferenceError: Set is not defined js/libs/webcomponents/custom-elements.min.js:2
Uncaught ReferenceError: customElements is not defined ojcomponentcore.js:7498
Facing issue in 4.4.3 version of android

Application is working fine for the latest version of Android.

Please check attached image and let me know if need more information.

[peppertech]

Hi riinamdar,

Android 4.4.3 is so old it does not support many html5 or es6 features. The minimum version of Android supported by JET is 5, and you must have the latest webkit version installed on 5 as well.

You can try using a library called crosswalk with the older Android version, which updates the webkit version, but still no guarantee it will work in all cases. 4.4.3 is just to old at this point.