It's because of a Chrome bug that dynamically granted options will be "forgotten" after Chrome restarts if I set all urls as optional permission. In order to support GitHub Enterprise, which I cannot know the domains in advance, I have to request permission for all domains and deal with script injection myself.
Thanks for the feedback, I should add a note about that. I made it designed exactly like GitHub because I want visitors to see how it actually works on GitHub.
Of course it will be much easier to use if video sites like YouTube provide this feature. But I don't thinks its that widely needed for them to put it on the feature list.
Haven't tried that...it probably won't work. I live in China so YouTube is kinda inconvenient. I connected via VPN to test on YouTube and it should work on most video clips.
When I'm away from my girlfriend we chat through live audio and sometimes we want to watch movies together. So if the videos syncs we can talk and make comments as if we were together :)