function main() {	var shortdesc = mw.config.get( 'wgShortDesc' ),		tagline;	if ( shortdesc ) {		tagline = document.getElementById( 'siteSub' );		// Wikipedia uses shortdescription class		// Added for gadgets and extension compatibility		tagline.classList.add( 'ext-shortdesc', 'shortdescription' );		// BUG: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')		// tagline.innerHTML = shortdesc;		// FIXED: 		tagline.innerHTML = mw.html.escape( shortdesc );	}}main();