Greasy Fork镜像

In the `if` statement inside the function `playAfterAd`, you should null-check the `video` variable first.
Otherwise the script throws in that line (200) and ramps up the CPU utilization when for example, a Youtube live video is playing with the chat OPEN.

`if(video.paused && video.currentTime<1){`

should be changed to:

`if(video && video.paused && video.currentTime<1){`

Also, if you don't want to trigger the observer unnecessarily (I think), maybe set the "subtree" parameter to false; the ads are still skipped and the chat does not trigger que observer.

thx bro