the link: https://tw.video.yahoo.com/attack-on-titan_s2/%E9%80%B2%E6%93%8A%E7%9A%84%E5%B7%A8%E4%BA%BA-%E7%AC%AC%E4%BA%8C%E5%AD%A3ep07-%E5%AE%8C%E6%95%B4%E7%89%88-013000092.html The video is totally black. In console it has many red error messages. But in Chrome, the video plays ok. What did web developer on these two sites did that make the video can only play in Chrome?