Hello SteffenR-, I also tried your method, put bilibili's video code <iframe src="//player.bilibili.com/player.html?aid=941412876&bvid=BV1pW4y1y7r6&cid=787144318&page=1" scrolling="no" border="0" frameborder="no" framespacing="0" allowfullscreen="true"> </iframe> is copied to the HTML code in the post, and the video can also be previewed, but when I press POST, an error is reported, I don't know why?
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