How to get Text object font-size after modifying object

How can I get Text object font size after modifying object in fabric.js?

Below is my code.

var text = new fabric.Text(imgText, {
                left: 10,
                top: 5,
                fontSize: 15,
                fontFamily: 'Verdana',
                fill: 'white'
            });
            text.scaleToWidth(canvas.width * 0.5);
            text.setControlsVisibility(canvasConfig);
            canvas.add(text);
            canvas.renderAll();
var objects = canvas.getActiveObject();

            var obj = objects;
            if (!obj) {
                return;
            }
            //console.log(obj.get('fontSize') *= obj.scaleX); 
            var angle = obj.get('angle');

            var objWidth = obj.get('width') * obj.scaleX;
            var objWidthPercent = objWidth / canvas.width * 100;

            var objHeight = obj.get('height') * obj.scaleY;
            var objHeightPercent = objHeight / canvas.height * 100;

            var bound = obj.getBoundingRect();
            var objLeft = obj.get('left') / canvas.width * 100;
            var objTop = obj.get('top') / canvas.height * 100;

            var newfontsize = obj.fontSize * obj.scaleX;

Above I set default FontSize to 15. then I modify object I can get proper Height, Width, Left, Top, but I am not able to get FontSize.

In backend i set image and text like below screenshot.

In frontend what i get like below screenshot.

Below style for image & text on frontend.

element.style {
    left: 64.37%;
    top: 14.54%;
    width: 28.25%;
    height: 14.37%;
    font-size: 63.58px;
    color: #E346FF;
    font-family: Times New Roman;
    position: absolute;
    max-width: 100%;
    z-index: 996;
    max-height: 100%;
}

element.style {
    left: 56.5%;
    top: 0.81%;
    width: 42.86%;
    height: 42.86%;
    max-width: 100%;
    max-height: 100%;
    position: absolute;
    z-index: 995;
    display: block;
    background-image: url(http://10.16.16.101/LabelExtension/pub/media/labelimageuploader/images/image/o/r/orange_38.png);
    background-position: center;
    background-repeat: no-repeat;
    background-size: contain;
}

When i add below code it working perfect but in backend object is getting blur.

this.canvas.setHeight(300);
this.canvas.setWidth(240);
this.canvas.backgroundColor = '#E8EEF1';
this.canvas.setDimensions({width: '480px', height: '600px'}, {cssOnly: true});

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