我有一个类似的问题HTML5视频，如果没有.ogv文件，则回退到flash
但我的问题是，如果浏览器无法打开.ogv文件（不支持ogv），我想回退到flash。假设我的html在源元素下方已经有预设的回退代码，如果所有源都无法打开（即没有源网络状态），我可以指示浏览器继续执行这些预设的回退码吗？
在播放之前，您可以预先嗅探浏览器是否支持OGV：
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