1
因此,根據this article,您可以使用配備帆布混合模式測試,功能測試帆布混合模式:如何使用globalCompositeOperation
Modernizr.addTest('canvasblending', function() {
if (Modernizr.canvas === false) return false;
var ctx = document.createElement('canvas').getContext('2d');
ctx.globalCompositeOperation = 'screen';
return ctx.globalCompositeOperation == 'screen';
});
它返回一個假陽性在Chrome 27