Shadows not working on FabricJS - css

Question

I have updated FabricJS version 1.5 to 1.6(beta), then the text shadow effects does not work now. Here is my function. How to fix this issue?
$('#text-shadow-set').change(function (){
if(isText()) {
if(this.checked) {
var tmp = $('#text-shadow-offset-slider').slider('option','value');
var shadVal = (tmp==''||tmp==0) ? 20 : tmp;
currentElement.setShadow({
color: '#000',
blur: 5,
offsetX: shadVal,
offsetY: shadVal
});
canvas.renderAll();
} else {
currentElement.setShadow(null);
canvas.renderAll();
}
}
});

Answer 1

Text and shadows seem to work fine. Check the demo below:
var text = new fabric.Text('Text with Shadow', {
left: 50,
top: 150,
fill: 'red',
strokeWidth: 1,
stroke: 'black',
});
text.setShadow({
color: 'black',
blur: 5,
offsetX: 10,
offsetY: 10,
opacity: 0.5,
});
canvas.add(text);
canvas.renderAll();
DEMO
var canvas = new fabric.Canvas('c');
var text = new fabric.Text('Text with Shadow', {
left: 50,
top: 150,
fill: 'red',
strokeWidth: 1,
stroke: 'black',
});
text.setShadow({
color: 'black',
blur: 5,
offsetX: 10,
offsetY: 10,
opacity: 0.5,
});
canvas.add(text);
canvas.renderAll();
canvas {
border: 1px solid #f00;
margin: 0px;
display: block;
}
<script src="https://rawgit.com/fabricjs/fabric.js/master/dist/fabric.min.js"></script>
<canvas id="c" width="400" height="400"></canvas>