Changes

The [http://www.whatwg.org/specs/web-apps/current-work/multipage/origin-0.html#dom-document-domain document.domain attribute ] is used to enable pages on different hosts of a domain to access each others' DOMs. Browsers restrict the values to which the document.domain property can be set, to maintain the same origin policy.  ====window.external.IsSearchProviderInstalled()==== The [http://www.w3whatwg.org/TRspecs/html5web-apps/browserscurrent-work/multipage/timers.html#dom-documentexternal-domain See the HTML5 spec for the algorithmissearchproviderinstalled IsSearchProviderInstalled() method]uses Public Suffix.