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diff --git a/testing/web-platform/tests/html/interaction/focus/focusgroup/tentative/forward-navigation/vertical/does-not-move-when-axis-not-supported.html b/testing/web-platform/tests/html/interaction/focus/focusgroup/tentative/forward-navigation/vertical/does-not-move-when-axis-not-supported.html
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+++ b/testing/web-platform/tests/html/interaction/focus/focusgroup/tentative/forward-navigation/vertical/does-not-move-when-axis-not-supported.html
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+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>HTML Test: focusgroup - Focus does not move to next focusgroup item when the axis of the arrow key pressed isn't supported.</title>
+<link rel="author" title="Microsoft" href="http://www.microsoft.com/">
+<link rel="help" href="https://github.com/MicrosoftEdge/MSEdgeExplainers/blob/main/Focusgroup/explainer.md">
+<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="/resources/testdriver-actions.js"></script>
+<script src="../../resources/focusgroup-utils.js"></script>
+
+<div id=root focusgroup=horizontal>
+  <span id=item1 tabindex=0>item1</span>
+  <span id=item2 tabindex=-1>item2</span>
+</div>
+
+<script>
+
+  promise_test(async t => {
+    var item1 = document.getElementById("item1");
+
+    await focusAndKeyPress(item1, kArrowDown);
+    assert_equals(document.activeElement, item1);
+  }, "When the focus is set on an item of a focusgroup that only supports the orthogonal axis to the arrow key pressed, the arrow pressed shouldn't move the focus.");
+
+</script>
+\ No newline at end of file