1 files changed, 27 insertions, 0 deletions
diff --git a/layout/base/tests/bug1506547-6.html b/layout/base/tests/bug1506547-6.html
new file mode 100644
index 0000000000..d6a780e48a
--- /dev/null
+++ b/layout/base/tests/bug1506547-6.html
@@ -0,0 +1,27 @@
+<!doctype html>
+<html class="reftest-wait">
+<title>Caret on editable line with non-editable content and whitespace.</title>
+<script src="/tests/SimpleTest/EventUtils.js"></script>
+<script src="/tests/SimpleTest/SimpleTest.js"></script>
+<style>
+ * { outline: none }
+
+ div {
+  border: 1px solid red;
+  margin: 5px;
+  padding: 2px;
+ }
+</style>
+<div contenteditable="true"><span contenteditable="false">xyz </span><br>editable</div>
+<script>
+SimpleTest.waitForFocus(function() {
+  const editable = document.querySelector('div[contenteditable="true"]');
+  editable.focus();
+  synthesizeKey("KEY_ArrowDown");
+  synthesizeKey("KEY_ArrowLeft");
+  setTimeout(() => {
+    sendString("xxx");
+    setTimeout(() => document.documentElement.className = "");
+  });
+});
+</script>