[ttml2] [related media object region target] and [viewport target] defined but not referenced

palemieux has just created a new issue for https://github.com/w3c/ttml2:

== [related media object region target] and [viewport target] defined but not referenced ==
Suggest removing unless needed

Please view or discuss this issue at https://github.com/w3c/ttml2/issues/320 using your GitHub account

Received on Wednesday, 17 May 2017 21:51:37 UTC