I have heard this can happen with Privacy Badger, but I'm sure other extensions can cause the issue. I think it is a fairly common issue with embedded Vimeo videos, but I haven't had a chance to look at alternative options/settings and hosting videos myself comes with a whole other set of issues.
Just FYI I am not personally doing a bunch of tracking here. I don't even think I have Google Analytics setup on this domain. Instead it is a byproduct of Vimeo having at tracking cookie :(
I turned off NoScript, and uBlock doesn't show any blocked requests (the only privacy add-ons I have.)
Still no video.
The player loads and shows an image, the video bar shows background video loading progress and even clicking to certain parts of the video shows different image clips. Just no video. So I've just given up.
I discovered the problem after I managed to break video playback while configuring the newly installed browser.
Firefox has an "advanced" setting (about:config only) to prevent media automatically playing which was preventing playback - even with the video player's buttons. about:config | media.autoplay.enabled | true -> breaks the player.
However there's another anti-tracking option that prevents embedded videos even being displayed - Preferences | Privacy & Security | Tracking Protection | click [Change Block List...] -> 'Basic' works, 'Strict' doesn't .
I have Firefox Nightly installed now (with no extensions yet) and a blank profile which works so there's no need. I do appreciate the offer to help though.
in both Chrome and Firefox. What's up with that?