resolve-relative-to-base.sub.html (1082B)
1 <!doctype html> 2 <title>URLs in embedded style sheets resolve relative to the document base URI</title> 3 <link rel=help href=https://drafts.csswg.org/css-values/#relative-urls> 4 <script src=/resources/testharness.js></script> 5 <script src=/resources/testharnessreport.js></script> 6 <base href="http://{{hosts[alt][www]}}"> 7 <style> 8 :root { 9 --image-path: url("images/test.png"); 10 } 11 #relative-image-url { 12 background-image: url(images/test.png); 13 } 14 15 #relative-image-variable-url { 16 background-image: var(--image-path); 17 } 18 </style> 19 <div id="relative-image-url"></div> 20 <div id="relative-image-variable-url"></div> 21 <script> 22 const ids = [ 23 "relative-image-url", 24 "relative-image-variable-url" 25 ]; 26 27 for (let id of ids) { 28 test(() => { 29 const el = document.getElementById(id); 30 const backgroundImageStyle = window.getComputedStyle(el)["background-image"]; 31 const baseRelativeImageURL = new URL("images/test.png", document.baseURI); 32 assert_equals(backgroundImageStyle, `url("${baseRelativeImageURL.href}")`); 33 }, "base-relative URL: " + id); 34 } 35 </script>