[ttml2] Pull Request: Improve non-negative-real interoperability (#943).

skynavga has just submitted a new pull request for https://github.com/w3c/ttml2:

== Improve non-negative-real interoperability (#943). ==
Closes #943.

See https://github.com/w3c/ttml2/pull/944

Received on Monday, 30 July 2018 05:39:02 UTC