History of document environment Revision history for: English (US) Apr 6, 2016, 4:29:51 AM klez tagged Previous Nov 7, 2015, 10:24:51 PM jsx Editorial review completed. Previous Nov 4, 2015, 11:34:20 AM jsx Previous Nov 4, 2015, 11:33:42 AM jsx Clarified a bit with help from #whatwg on irc Nov 4, 2015, 10:48:18 AM jsx This needs review and clarification (https://html.spec.whatwg.org/multipage/webappapis.html#definitions-2:document-environment)