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.

 

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

答案翻譯

這多是Flash內容被阻止（請檢查控制檯，它可能會報告帶有swf文件的URL）。谷歌一年前開始淡化 Flash。根據如下文章和論壇主題，Chrome實際上已於2015年9月開始「 暫停全部寬度小於400px，高度小於300px的跨插件內容」，如今我認爲它徹底阻止了它：

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

Chromium開發者的原始論壇主題：

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