| <!doctype html> |
| <title>Empty URLs behaviour</title> |
| <link rel=help href=https://drafts.csswg.org/css-values/#url-empty> |
| <link rel=help href=https://github.com/w3c/csswg-drafts/issues/2211#issuecomment-365677844> |
| <script src=/resources/testharness.js></script> |
| <script src=/resources/testharnessreport.js></script> |
| <style> |
| #inline-unquoted { |
| background-image: url(); |
| } |
| |
| #inline-quoted { |
| background-image: url(""); |
| } |
| </style> |
| <link rel=stylesheet href=support/empty-urls.css> |
| <div id="inline-unquoted"></div> |
| <div id="inline-quoted"></div> |
| <div id="external-unquoted"></div> |
| <div id="external-quoted"></div> |
| <script> |
| const ids = [ |
| "inline-unquoted", |
| "inline-quoted", |
| "external-unquoted", |
| "external-quoted" |
| ]; |
| |
| for (let id of ids) { |
| test(function() { |
| const el = document.getElementById(id); |
| const style = window.getComputedStyle(el); |
| assert_equals(style["background-image"], 'url("about:invalid")'); |
| }, "empty URL: " + id); |
| } |
| </script> |
