unable to trigger ng-change in android webview

I have given a simple text box and an change event updates a table below the text box.
It works absolutely fine in the browser.
But when I call this page in android webview, ng-change doesn’t trigger.
Android version 4.2.2. Chrome in the android device is of version 38.0

<input type="text" id="barcode" name="barcode"  ng-model="thisBarcode" ng-model-options="{ updateOn: 'change' }" placeholder="Scan Barcode Here"  autofocus ng-change="addProductToCart(this.thisBarcode)">

Source: AngularJS