client-hints-picture-source-removal.html

<!DOCTYPE html>
<script src="../../../resources/testharness.js"></script>
<script src="../../../resources/testharnessreport.js"></script>
<script>
    var counter = 1;
    var t = async_test("Verify that removing a source triggers a proper image load and doesn't result in a crash.");
    window.addEventListener("message", t.step_func(function (message) {
        if (message.data.indexOf("fail") != -1) {
            assert_unreached("The test failed on " + message.data);
            t.done();
            return;
        }
        if (counter == 1) {
            assert_equals(message.data, "remove");
            ++counter;
            child.postMessage("remove", "*");
        } else {
            assert_equals(message.data, "success");
            t.done();
        }
    }));
    var child = window.open("resources/window-ch-with-picture-removal.php",
                            "helper", "innerWidth=800, innerHeight=600");
</script>

chromium/third_party/blink/web_tests/http/tests/misc/client-hints-picture-source-removal.html