1 files changed, 34 insertions, 0 deletions
diff --git a/testing/web-platform/tests/fullscreen/model/remove-parent.html b/testing/web-platform/tests/fullscreen/model/remove-parent.html
new file mode 100644
index 0000000000..54ff5b8371
--- /dev/null
+++ b/testing/web-platform/tests/fullscreen/model/remove-parent.html
@@ -0,0 +1,34 @@
+<!DOCTYPE html>
+<title>Remove the parent of the fullscreen element</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/resources/testdriver.js"></script>
+<script src="/resources/testdriver-vendor.js"></script>
+<script src="../trusted-click.js"></script>
+<div id="log"></div>
+<div>
+  <div id="child"></div>
+</div>
+<script>
+  promise_test(async (t) => {
+    t.add_cleanup(() => {
+      if (document.fullscreenElement) {
+        return document.exitFullscreen();
+      }
+    });
+    const child = document.getElementById("child");
+    const [, event] = await Promise.all([
+      trusted_request(child),
+      fullScreenChange(),
+    ]);
+    assert_equals(document.fullscreenElement, child);
+    assert_equals(event.target, child);
+    child.parentNode.remove();
+    // Because /child/ was removed from the top layer, the fullscreen
+    // element becomes null synchronously.
+    assert_equals(document.fullscreenElement, null);
+    const secondEvent = await fullScreenChange();
+    assert_equals(document.fullscreenElement, null);
+    assert_equals(secondEvent.target, document);
+  });
+</script>