1 files changed, 37 insertions, 0 deletions
diff --git a/dom/events/test/file_focus_blur_on_click_in_deep_cross_origin_iframe_middle.html b/dom/events/test/file_focus_blur_on_click_in_deep_cross_origin_iframe_middle.html
new file mode 100644
index 0000000000..bb128422ae
--- /dev/null
+++ b/dom/events/test/file_focus_blur_on_click_in_deep_cross_origin_iframe_middle.html
@@ -0,0 +1,37 @@
+<!DOCTYPE html>
+<script src="/tests/SimpleTest/paint_listener.js"></script>
+<script src="/tests/gfx/layers/apz/test/mochitest/apz_test_utils.js"></script>
+<style>
+html, body {
+  height: 200px;
+  margin: 0px;
+  padding: 0px;
+}
+</style>
+<body>
+<script>
+  window.addEventListener("message", async (event) => {
+    if (event.data == "innerready") {
+      // Wait for APZ state stable so that mouse event handling APZ works properly
+      // in out-of-process iframes.
+      await promiseApzFlushedRepaints();
+    }
+    parent.postMessage(event.data, "*");
+  });
+  window.onload = () => {
+    parent.postMessage("middleready", "*");
+  };
+  document.body.onfocus = () => {
+    parent.postMessage("middlefocus", "*");
+  };
+  document.body.onblur = () => {
+    parent.postMessage("middleblur", "*");
+  };
+</script>
+<div style="width:100px;height:100px;background-color:gray;"></div>
+<iframe width="100" height="100" src="https://example.org/tests/dom/events/test/file_focus_blur_on_click_in_deep_cross_origin_iframe_inner.html"></iframe>
+<script>
+  document.querySelector("div").addEventListener("click", event => {
+    parent.postMessage("middleclick", "*");
+  });
+</script>