关于webp

关于webp的介绍及测试

检测浏览器是否支持WebP

google webp

function webpTest(callback) {
    var image = new Image();

    image.onerror = function () {
        callback(false);
    };

    image.onload = function () {
        if (image.width === 1) {
            callback(true);
        } else {
            callback(false);
        }
    };

    image.src = 'data:image/webp;base64,UklGRiwAAABXRUJQVlA4ICAAAAAUAgCdASoBAAEAL/3+/3+CAB/AAAFzrNsAAP5QAAAAAA==';
}