downloadAvatar(imgsrc) {
let image = new Image();
const name = imgsrc && imgsrc.split('/').pop();
image.setAttribute('crossOrigin', 'anonymous');
image.onload = function () {
let canvas = document.createElement('canvas');
canvas.width = image.width;
canvas.height = image.height;
let context = canvas.getContext('2d');
context.drawImage(image, 0, 0, image.width, image.height);
let url = canvas.toDataURL('image/png');
let a = document.createElement('a');
let event = new MouseEvent('click');
a.download = name || 'photo';
a.href = url;
a.dispatchEvent(event);
};
image.src = imgsrc;
}