axe-core/lib/core/utils/is-xhtml.js

Accessibility engine for automated Web UI testing

/**
 * Determines if a document node is XHTML
 * @method isXHTML
 * @memberof axe.utils
 * @param {Node} doc a document node
 * @return {Boolean}
 */
function isXHTML(doc) {
  if (!doc.createElement) {
    return false;
  }
  return doc.createElement('A').localName === 'A';
}

export default isXHTML;