(async()=>{let u=[...document.querySelectorAll('picture')].flatMap(p=>[...p.querySelectorAll('source[srcset], img[srcset], img[src]')].flatMap(s=>(s.getAttribute('srcset')?s.getAttribute('srcset').split(',').map(u=>u.trim().split(' ')[0]):[s.getAttribute('src')]).filter(u=>u))),r=await Promise.all(u.map(u=>fetch(u).then(res=>res.status=404?u:'').catch(()=>''))),f=r.filter(u=>u);f.length?console.error('Faulty URLs:',f):console.log('All is good, no faulty URLs found.');})();

JavaScript provera slika u konzoli
#igrarije #testiranje #korisno