attr-img-fetchpriority.html (1345B)
1 <!DOCTYPE html> 2 <title>Fetch Priority - Image element</title> 3 <meta name="author" title="Dominic Farolino" href="mailto:domfarolino@gmail.com"> 4 <script src="/resources/testharness.js"></script> 5 <script src="/resources/testharnessreport.js"></script> 6 7 <img id=img1 src=/images/green.png fetchpriority=high> 8 <img id=img2 src=/images/green.png fetchpriority=low> 9 <img id=img3 src=/images/green.png fetchpriority=auto> 10 <img id=img4 src=/images/green.png fetchpriority=xyz> 11 <img id=img5 src=/images/green.png> 12 13 <script> 14 test(() => { 15 assert_equals(img1.fetchPriority, "high", "high fetchPriority is a valid IDL value on the image element"); 16 assert_equals(img2.fetchPriority, "low", "low fetchPriority is a valid IDL value on the image element"); 17 assert_equals(img3.fetchPriority, "auto", "auto fetchPriority is a valid IDL value on the image element"); 18 assert_equals(img4.fetchPriority, "auto", "invalid fetchPriority reflects as 'auto' IDL attribute on the image element"); 19 assert_equals(img5.fetchPriority, "auto", "missing fetchPriority reflects as 'auto' IDL attribute on the image element"); 20 }, "fetchpriority attribute on <img> elements should reflect valid IDL values"); 21 22 test(() => { 23 const img = new Image(); 24 assert_equals(img.fetchPriority, "auto"); 25 }, "fetchPriority of new Image() is 'auto'"); 26 </script>