Same issue here
On a website we use:
<video poster="https://.../HERO_MOB_NS4.jpg" preload="none" playsinline="">
<source src="https://player.vimeo.com/.../720p/file.mp4" type="video/mp4">
</video>
then on PLAY click we run JS:
videoEl.play();
$(videoEl).attr('controls', '');
Before 17.0 everything was perfect
Alex-D
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