code: function getAttributeNameValue(node, at) {
  	const name = at.name;
  	let atnv;
  
  	if (name.indexOf('href') !== -1 || name.indexOf('src') !== -1) {
  		let friendly = axe.utils.getFriendlyUriEnd(node.getAttribute(name));
  		if (friendly) {
  			let value = encodeURI(friendly);
  			if (value) {
  				atnv = escapeSelector(at.name) + '$="' + escapeSelector(value) + '"';
  			} else {
  				return;
  			}
  		} else {
  			atnv =
  				escapeSelector(at.name) +
  				'="' +
  				escapeSelector(node.getAttribute(name)) +
  				'"';
  		}
  	} else {
  		atnv = escapeSelector(name) + '="' + escapeSelector(at.value) + '"';
  	}
  	return atnv;
  }
docs: get the attribute name and value as a string
  @param {Element} node		The element that has the attribute
  @param {Attribute} at		The attribute
  @return {String}