Weekly github digest (HTML specs)

Issues
------
* w3c/html (+6/-1/💬20)
  6 issues created:
  - Why is there no alt attribute associated with the poster attribute on a video element (or, what's the accessible name calculation on a video element)? (by OwenEdwards)
    https://github.com/w3c/html/issues/1431 
  - Standard recommends using <video> element for audio to allow accessibility, but does not mention how this impacts format support between the two elements in a UA (by OwenEdwards)
    https://github.com/w3c/html/issues/1430 
  - Need clarification on <audio> element support for <track> elements (by OwenEdwards)
    https://github.com/w3c/html/issues/1429 
  - update content models for table elements (by scottaohara)
    https://github.com/w3c/html/issues/1428 
  - 1.9 A quick introduction to HTML - Updating HTML examples. (by stuartjnelson)
    https://github.com/w3c/html/issues/1426 
  - Can aria-label render as title attribute (tooltip)? (by devarshipant)
    https://github.com/w3c/html/issues/1425 

  7 issues received 20 new comments:
  - #1431 Why is there no alt attribute associated with the poster attribute on a video element (or, what's the accessible name calculation on a video element)? (6 by scottaohara, johnfoliot, OwenEdwards, stevefaulkner)
    https://github.com/w3c/html/issues/1431 [Feature request] [Needs incubation] [a11y] 
  - #1426 1.9 A quick introduction to HTML - Updating HTML examples. (4 by LJWatson, stuartjnelson, scottaohara)
    https://github.com/w3c/html/issues/1426 
  - #1419 lang attribute have no right link to the language tag. (3 by r12a, aphillips)
    https://github.com/w3c/html/issues/1419 [editorial] [i18n-comment] 
  - #1424 Mark ruby with rb rb* rt rt* at risk? (3 by frivoal, r12a, fantasai)
    https://github.com/w3c/html/issues/1424 [at risk] [i18n-comment] [i18n-jlreq] 
  - #1425 Can aria-label render as title attribute (tooltip)? (2 by prlbr, devarshipant)
    https://github.com/w3c/html/issues/1425 
  - #1421 Accept-charset attribute of form element maybe have a bug (1 by edent)
    https://github.com/w3c/html/issues/1421 
  - #1434 dns-prefetch is not body-ok (1 by mtrootyy)
    https://github.com/w3c/html/issues/1434 

  1 issues closed:
  - 1.9 A quick introduction to HTML - Updating HTML examples. https://github.com/w3c/html/issues/1426 

* w3c/html-aam (+2/-0/💬0)
  2 issues created:
  - Name calculation for input type="file" not covered (by joanmarie)
    https://github.com/w3c/html-aam/issues/134 
  - Wrong IA2 role listed for <footer> (by aleventhal)
    https://github.com/w3c/html-aam/issues/133 



Pull requests
-------------
* w3c/html (+3/-0/💬0)
  3 pull requests submitted:
  - 1426 updating introduction code examples (by stuartjnelson)
    https://github.com/w3c/html/pull/1436 
  - update td, th, caption content models (by scottaohara)
    https://github.com/w3c/html/pull/1435 
  - Add prose / example for headers attribute (by scottaohara)
    https://github.com/w3c/html/pull/1427 


Repositories tracked by this digest:
-----------------------------------
* https://github.com/w3c/html
* https://github.com/w3c/html-aam
* https://github.com/w3c/html-aria
* https://github.com/w3c/html-extensions
* https://github.com/w3c/html-landscape
* https://github.com/w3c/html-reference
* https://github.com/w3c/aria-in-html