<!DOCTYPE html> <!-- https://bugzilla.mozilla.org/show_bug.cgi?id=757371 --> <title>Test for Bug 757371</title> <script src="/tests/SimpleTest/SimpleTest.js"></script> <script src="/tests/SimpleTest/EventUtils.js"></script> <link rel="stylesheet" href="/tests/SimpleTest/test.css"/> <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=757371">Mozilla Bug 757371</a> <div contenteditable></div> <script> SimpleTest.waitForExplicitFinish(); SimpleTest.waitForFocus(function() { var div = document.querySelector("div"); div.focus(); getSelection().collapse(div, 0); document.execCommand("bold"); sendString("ab"); sendKey("BACK_SPACE"); sendChar("b"); is(div.innerHTML, "<b>ab</b>"); SimpleTest.finish(); }); </script>