Comments (2)
该方法原理是创建一张canvas画布,将其强行转成base64编码的webp图片,如果转码成功,那么开头会有webp相关的标识符
from reading.
如果浏览器支持webp,那么这个object标签是不可见的否则就会显示高度,offsetWidth等于0
from reading.
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from reading.