[session recording] Inactive periods don't get skipped.

[timgl]

Bug description

When playing a session, it doesn't seem to skip inactive period very well, forcing you to click around to find the point at which the user does something again

Expected behavior

It should skip inactive periods

How to reproduce

Environment

• PostHog cloud or self-managed?
• PostHog version/commit

Additional context

Thank you for your bug report – we love squashing them!

[macobo]

Not something we can do something about immediately as this part is implemented by https://github.com/rrweb-io/rrweb-player / rrweb/Replayer.

However we could dig in a bit and see if we can fix this upstream as this comes up relatively commonly.

[macobo]

The new player should indicate inactive periods much nicer which I think solves this issue. Let me know if not!

Note that there might be some fuzzyness there if user is 'inactive' but moves the mouse a tiny bit which is not considered as inactive by rrweb.