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<!doctype html>
<title>ResizeObserver and IntersectionObserver ordering</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script>
async_test(function(t) {
let sawResize = false;
let sawIo = false;
let resizeObserver = new ResizeObserver(t.step_func(function() {
assert_false(sawIo, "ResizeObserver notification should be delivered before IntersectionObserver notification");
sawResize = true;
resizeObserver.disconnect();
}));
let io = new IntersectionObserver(t.step_func_done(function() {
assert_true(sawResize, "IntersectionObserver notification should be delivered after ResizeObserver notification");
sawIo = true;
io.disconnect();
}));
resizeObserver.observe(document.documentElement);
io.observe(document.documentElement);
});
</script>
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