| <!DOCTYPE html> |
| <title>Do not crash when animating to unresolved var()</title> |
| <link rel="help" href="https://drafts.css-houdini.org/css-properties-values-api/#dom-css-registerproperty"> |
| <link rel="help" href="https://crbug.com/1185524"> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <div id="target"></div> |
| <script> |
| promise_test(async function(){ |
| CSS.registerProperty({ |
| name: '--x', |
| syntax: '<number>', |
| initialValue: '1', |
| inherits: false |
| }); |
| let animation = target.animate({'--x': [ 'var(--unknown)']}, 100); |
| await animation.ready; |
| assert_equals(getComputedStyle(target).getPropertyValue('--x'), '1'); |
| }, 'Do not crash when animating to unresolved var()'); |
| </script> |
