IE11 and Edge do not support simultaneous cues

Created by: TobbeMobiTV

IE11 and Edge both seem to ignore a second cue if one is displayed already. This can be tested with http://vm2.dashif.org/dash/vod/testpic_2s/stpp_two_regions.mpd The behavior is the same for both native TextTrackCue rendering and the HTML-based one.

In Chrome and Safari, simultaneous cues work fine.

A possible work-around would be to process cues from all regions and combine multiple regions into a series of cues for each change in combined regions to be displayed.