rails/rails — pull request #10483 by vipulnsward (2013-05-06 06:04:10+00:00)
Title: Add "poster" as an acceptable attribute of <video>

Add "poster" as an acceptable attribute of
changes wrt: https://code.google.com/p/html5lib/source/detail?spec=svn6a52f08fb7eb81870095b763a50406fc8216054e&r=6a52f08fb7eb81870095b763a50406fc8216054e