<!doctype html> <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>xyz </span><br>editable</div> <script> SimpleTest.waitForFocus(function() { const editable = document.querySelector('div[contenteditable="true"]'); editable.focus(); synthesizeMouse(editable, 100, 10, {}); }); </script>