我最近遇到了同样的问题，与视频所有者的嵌入设置无关.显然，***禁止在没有公共域的情况下将某些视频嵌入到本地主机环境中，但是您可以通过公共域/子域完全嵌入视频:将@PStarczewski的答案中JSFiddle中的src值替换为视频链接，它将工作正常.

I had the same issue recently and it had nothing to do with video owners embedding settings. Apparently *** forbids embedding some videos in a localhost environment without a public domain, but your video can be embedded with no issue whatsoever through a public domain/subdomain: Replace the src value in the JSFiddle from @PStarczewski's answer with your video link and it will work properly.