<!DOCTYPE>
<html>
<head>
<script src="../../../resources/js-test-pre.js"></script>
</head>
<body>
<p id="description"></p>
<div id="console"></div>
<script>
description("Test the parsing of the -webkit-backdrop-filter property.");

var styleElement = document.createElement("style");
document.head.appendChild(styleElement);
var stylesheet = styleElement.sheet;

// add a -webkit-filter property to the start of the stylesheet
stylesheet.addRule("body", "-webkit-backdrop-filter: hue-rotate(120deg)", 0);

var cssRule = stylesheet.cssRules.item(0);

shouldBe("cssRule.type", "1");

var declaration = cssRule.style;
shouldBe("declaration.length", "1");
shouldBe("declaration.getPropertyValue('-webkit-backdrop-filter')", "'hue-rotate(120deg)'");

successfullyParsed = true;
</script>
<script src="../../../resources/js-test-post.js"></script>
</body>
</html>