[ttml2] Constrain use of @type on data element for reference data embeddings. (#1022)

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

== Constrain use of @type on data element for reference data embeddings. ==
For `data` element, if `@type` is specified for a _reference data embedding_, then reference must not be to an _internal data source_; conversely, if reference is to an _external data source_, then `@type` should be specified.

Please view or discuss this issue at https://github.com/w3c/ttml2/issues/1022 using your GitHub account

Received on Wednesday, 2 January 2019 04:18:15 UTC