一开始我有一个错误：
1）video.js:91Uncaught (in promise) DOMException: The play() request was interrupted by a new load request.
2）我试图google并找到了这个：
$("#myVideo").get(0).play();
3）现在我有错误： a）在main page目标网页上放置视频。
video.js:91Uncaught (in promise) DOMException: The play() request was interrupted by a new load request.
б）在视频缺失的其他页面for example上
scripts.js:28Uncaught TypeError: Cannot read property 'play' of undefined