awesome! works thanks!

I'm glad it works for everyone now. (hopefully)

I usually look at the profile page of users commenting on my scripts to discover other scripts of interest. I've seen that you've commented on a script that kills auto-play on YT. I didn't want to reply on the script's page; my intent is not to move users away from his script.
I don't know which browser you use, but there is an extension for chrome that works for all websites. Never had any problem on any site since installing it. It's called "AutoplayStopper" (in one word). Each site can be tuned to allow/block(default)/allowSession. Default is fine for me. Obviously it blocks on more than the "channel", so it might not suit your needs exactly.