web-animations/web-animations-next — pull request #250 by rjwright (2014-11-27 02:49:42+00:00)
Title: Initialize group child players when group player is created.

@shans @dstockwell
I don't know if this is the best way to achieve this, but it fixes the group play-pause-seek problem and doesn't break any tests.

Previously, playing, pausing and seeking a group would produce a paused group player with correct current time and no children. With this change you get a fully populated group player, and the children have seeked current times too.