Cross-origin plugin content from must have a visible size larger than 400 x 300 pixels, or it wi...

Cross-origin plugin content from  must have a visible size larger than 400 x 300 pixels, or it will be blocked. Invisible content is always blocked.

 

这儿找到了答案: https://stackoverflow.com/questions/47364531/chrome-cross-origin-plugin-content-from-must-have-a-visible-size-larger-than-40

答案翻译

这多是Flash内容被阻止（请检查控制台，它可能会报告带有swf文件的URL）。谷歌一年前开始淡化 Flash。根据如下文章和论坛主题，Chrome实际上已于2015年9月开始“ 暂停全部宽度小于400px，高度小于300px的跨插件内容”，如今我认为它彻底阻止了它：

https://games.slashdot.org/story/16/08/09/211225/google-chrome-53-will-de-emphasize-flash-in-favor-of-html5-next-month

Chromium开发者的原始论坛主题：

https://groups.google.com/a/chromium.org/forum/#!msg/chromium-dev/QL2K4yFVg_U/vj44YWOaAwAJ