code: function( html )
  		{
  			// Don't leave any history log in IE. (#5657)
  			this.$.open( 'text/html', 'replace' );
  
  			// Support for custom document.domain in IE.
  			CKEDITOR.env.isCustomDomain() &&  ( this.$.domain = document.domain );
  
  			this.$.write( html );
  			this.$.close();
  		}
docs: Defines the document contents through document.write. Note that the
  previous document contents will be lost (cleaned).
  @since 3.5
  @param {String} html The HTML defining the document contents.
  @example
  document.write(
  '&lt;html&gt;' +
  '&lt;head&gt;&lt;title&gt;Sample Doc&lt;/title&gt;&lt;/head&gt;' +
  '&lt;body&gt;Document contents created by code&lt;/body&gt;' +
  '&lt;/html&gt;' );