Fork Copy javascript: if(!(-1===location.pathname.indexOf('/events/')))var a=prompt('ID',location.pathname.match(/\d+/g)[0]);else if(document.querySelector('.coverWrap'))var id=document.querySelector('.coverWrap').getAttribute('data-referrerid'),a=prompt('ID',id);else{var check=!1;try{for(var metas=document.getElementsByTagName('meta'),i=0;i<metas.length;i++)if(!!metas[i]&&'al:ios:url'==metas[i].getAttribute('property')){var id=metas[i].getAttribute('content').toString().match(/\d+/g)[0];id.length&&(check=!0),prompt('ID',id)}}catch(b){}if(!check)var a=alert('Cannot GET FBID, Reload and try again')}