html5rocks/www.html5rocks.com — pull request #1254 by agektmr (2014-10-16 07:46:52+00:00)
Title: use document.importNode() instead of Node.cloneNode() in ShadowDOM

Updated ShadowDOM document as we recommend to use `document.importNode()` instead of `Node.cloneNode()`.
cc: @coonsta @cwdoh @sunnylost