Chrome 无法识别图片标签中的 webp 源
[英]Chrome dont recognize webp source in picture tag
问题描述
I'm generating picture html tag with set of variants of image but when I opening it in chrome, browser still getting default png image
我正在生成带有一组图像变体的picture html 标签，但是当我在 chrome 中打开它时，浏览器仍然获得默认的 png 图像
I tried different sets of srcset and sizes but no luck我尝试了不同的 srcset 和大小集，但没有运气
<picture> <source type="image/jpeg" sizes="(max-width: 320px) 290px, (max-width: 1200px) 290px, (max-width: 576px) 290px, (max-width: 992px) 290px, (max-width: 768px) 290px" srcset="http://example.loc/images/r2yROrnu4lgNHq8i2058qUUBnydmgO6HoUcwurSQ_290.jpeg 290w, http://example.loc/images/r2yROrnu4lgNHq8i2058qUUBnydmgO6HoUcwurSQ_290.jpeg 290w, http://example.loc/images/r2yROrnu4lgNHq8i2058qUUBnydmgO6HoUcwurSQ_290.jpeg 290w, http://example.loc/images/r2yROrnu4lgNHq8i2058qUUBnydmgO6HoUcwurSQ_290.jpeg 290w, http://example.loc/images/r2yROrnu4lgNHq8i2058qUUBnydmgO6HoUcwurSQ_290.jpeg 290w"> <source type="image/webp" sizes="(max-width: 320px) 290px, (max-width: 1200px) 290px, (max-width: 576px) 290px, (max-width: 992px) 290px, (max-width: 768px) 290px" srcset="http://example.loc/images/r2yROrnu4lgNHq8i2058qUUBnydmgO6HoUcwurSQ_290.webp 290w, http://example.loc/images/r2yROrnu4lgNHq8i2058qUUBnydmgO6HoUcwurSQ_290.webp 290w, http://example.loc/images/r2yROrnu4lgNHq8i2058qUUBnydmgO6HoUcwurSQ_290.webp 290w, http://example.loc/images/r2yROrnu4lgNHq8i2058qUUBnydmgO6HoUcwurSQ_290.webp 290w, http://example.loc/images/r2yROrnu4lgNHq8i2058qUUBnydmgO6HoUcwurSQ_290.webp 290w"> <img src="http://example.loc/images/r2yROrnu4lgNHq8i2058qUUBnydmgO6HoUcwurSQ_290.png 290w" srcset="http://example.loc/images/r2yROrnu4lgNHq8i2058qUUBnydmgO6HoUcwurSQ_290.png 290w, http://example.loc/images/r2yROrnu4lgNHq8i2058qUUBnydmgO6HoUcwurSQ_290.png 290w, http://example.loc/images/r2yROrnu4lgNHq8i2058qUUBnydmgO6HoUcwurSQ_290.png 290w, http://example.loc/images/r2yROrnu4lgNHq8i2058qUUBnydmgO6HoUcwurSQ_290.png 290w, http://example.loc/images/r2yROrnu4lgNHq8i2058qUUBnydmgO6HoUcwurSQ_290.png 290w" media="(max-width: 320px) 290px, (max-width: 1200px) 290px, (max-width: 576px) 290px, (max-width: 992px) 290px, (max-width: 768px) 290px" class="img-fluid" alt=""> </picture>
1 个解决方案
解决方案1
2 已采纳 2021-04-10 14:02:46
The browser takes the first <source> element it supports.浏览器采用它支持的第一个<source>元素。 Because all browsers support image/jpeg the second <source type="image/webp"> gets always ignored.因为所有浏览器都支持image/jpeg所以第二个<source type="image/webp">总是被忽略。
To fix this issues you have to reverse the order of the <source> elements:要解决此问题，您必须颠倒<source>元素的顺序：
<picture>
<source type="image/webp" …>
<source type="image/jpeg" …>
<img …>
</picture>
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