In cropperjs, background color does not change after cropping the image and I can't crop images round

[emeksc]

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4. See error

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Desktop (please complete the following information):

• OS: [e.g. iOS]
• Browser [e.g. chrome, safari]
• Version [e.g. 22]

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• Device: [e.g. iPhone6]
• OS: [e.g. iOS8.1]
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[emeksc]

I use cropperjs to crop pictures.I want the background color of the cropped image to be white. Although I give fillColor as white, it still comes in black. And how can I crop pictures in a round shape?

var cropper = $("#canvas1").cropper({
                    aspectRatio: 1 / 1,
                    strict: false,
                    guides: false,
                    dragCrop: false,
                    resizable: false,
                    mouseWheelZoom: false,
                    touchDragZomm: false,
                    autoCropArea: 0.5,
                    scalable: false,
                    cropBoxMovable: true,
                    cropBoxResizable: false,
                    setDragMode: 'crop',
                    minCanvasWidth: 25,
                    rotatable: true,
                    center: true,
                    modal: true,
                    viewMode: 0,
                    dragMode: 'move',
                    minContainerWidth: 200,
                    minContainerHeight: 100,
                    built: function () {
                        $(this).cropper('getCroppedCanvas').toBlob(function (blob) {
                            fillColor: '#fff'
                        });
                    }
                }
)

 .cropper-crop-box, .cropper-view-box {
            border-radius: 50%;
        }

 .cropper-view-box {
            box-shadow: 0 0 0 1px #39f;
            outline: 0;
        }

[fengyuanchen]

Just check out this example: https://fengyuanchen.github.io/cropperjs/examples/crop-a-round-image.html