[ttml2] TTML2 Wide Review: Foreign namespace elements not reflected in syntax

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

== TTML2 Wide Review: Foreign namespace elements not reflected in syntax  ==
### Section 5.3.2 

> In addition to standardized extension vocabulary, a conforming document instance may contain arbitrary namespace qualified elements that reside in any namespace other than those namespaces defined for use with this specification.

This option seems not reflected in the content model description of TTML elements.

Please view or discuss this issue at https://github.com/w3c/ttml2/issues/439 using your GitHub account

Received on Saturday, 30 September 2017 14:38:03 UTC