function _isRawTextNode(node) {
        return (node.nodeType === Node.ELEMENT_NODE && /script|style|noscript|noframes|noembed|iframe|xmp/i.test(node.tagName));
    }
@private
@param {Node} node
@return {boolean} true if node expects its content to be raw text (not parsed for entities) according to the HTML5 spec.