css/css-variables/variable-reference-refresh.html

<!DOCTYPE html>
<html>
<head>
    <title>Variable reference across document refresh</title>

    <meta rel="author" title="Kevin Babbitt">
    <meta rel="author" title="Greg Whitworth">
    <link rel="author" title="Microsoft Corporation" href="http://microsoft.com" />
    <!-- This is not directly specified in the spec but should work -->
    <link rel="help" href="http://www.w3.org/TR/css-variables-1/#defining-variables">

    <script src="/resources/testharness.js"></script>
    <script src="/resources/testharnessreport.js"></script>
</head>
<body>

    <iframe id="iframe" src="resources/variable-reference-refresh-iframe.html"></iframe>

<script type="text/javascript">
    "use strict";

    setup({explicit_done: true});

    // Set up event handler to drive tests
    var loadCount = 0;
    document.getElementById("iframe").addEventListener("load", function() {
        loadCount++;
        if (loadCount == 1)
        {
            test(function() {
                var iframe = document.getElementById("iframe");
                var iframeWindow = iframe.contentWindow;
                var iframeDocument = iframe.contentDocument;
                var testElement = iframeDocument.getElementById("testElement");
                var computedValue = iframeWindow.getComputedStyle(testElement).getPropertyValue("color").trim();
                assert_equals(computedValue, "rgb(0, 128, 0)", "color is green before page refresh");
                iframe.src = iframe.src;
            }, "Verify substituted color value before refresh");
        }
        else if (loadCount == 2)
        {
            test(function() {
                var iframeWindow = document.getElementById("iframe").contentWindow;
                var iframeDocument = document.getElementById("iframe").contentDocument;
                var testElement = iframeDocument.getElementById("testElement");
                var computedValue = iframeWindow.getComputedStyle(testElement).getPropertyValue("color").trim();
                assert_equals(computedValue, "rgb(0, 128, 0)", "color is green after page refresh");
            }, "Verify substituted color value after refresh");

            done();
        }
    });
</script>

</body>
</html>