Hi @hugobox,
Thanks for the tip!!!
I tried something similar yesterday, but then I also arrived in the catch part...
To be sure, I have reset again my autoplay policy to the default:
Then both your and mine version still work fine. Very weird!
Afterwards I have asked Chrome to make sure that a user gesture is required, before start playing:
Then both versions still work fine. I don't get it anymore 
Other nodes are also being fixed for the policy changes (see discussion and corresponding pull request), but I don't get how they can get around the user gestures that way ...
P.S. But your version is anyway better than mine ...
Bart
