<!DOCTYPE html> <!-- webkit-test-runner [ experimental:AsyncClipboardAPIEnabled=true ] -->
<html>
    <head>
        <script src="../../resources/js-test.js"></script>
    </head>
    <script>
        jsTestIsAsync = true;

        addEventListener("load", async function() {
            description("Verifies that the wrapper for Navigator's Clipboard remains consistent across GC passes. This test must be run using WebKitTestRunner.");

            subframe = document.querySelector("iframe");
            subframeNavigator = subframe.contentWindow.navigator;
            subframeNavigator.clipboard.foo = "bar";
            subframe.remove();
            subframe = null;

            if (window.GCController)
                GCController.collect();

            await new Promise(resolve => setTimeout(resolve, 50));
            shouldBeEqualToString("subframeNavigator.clipboard.foo", "bar");
            finishJSTest();
        });
    </script>
    <body>
        <iframe srcdoc="Hello world"></iframe>
    </body>
</html>