检测浏览器是否支持webp

2018-12-12 18:37 / 已浏览 380 次
function canUseWebP() {
    var elem = document.createElement('canvas');

    if (!!(elem.getContext && elem.getContext('2d'))) {
        // was able or not to get WebP representation
        return elem.toDataURL('image/webp').indexOf('data:image/webp') == 0;
    }

    // very old browser like IE 8, canvas not supported
    return false;
}

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