title: execCommand("insertHTML", ...) in Internet Explorer
body: <p>I'm building a wysiwyg-editor with an editable iframe using <code>document.execCommand()</code>. Now i need to use the <code>"insertHTML"</code> command which works perfectly in Chrome and Firefox but of course it doesn't work in Internet Explorer:</p>
  
  <p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
  <div class="snippet-code">
  <pre class="snippet-code-js lang-js prettyprint-override"><code>function run() {
    document.getElementById("target").focus();
    document.execCommand("insertHTML", false, "&lt;b&gt;ins&lt;/b&gt;");
  }</code></pre>
  <pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;div contenteditable id="target"&gt;contenteditable&lt;/div&gt;
  &lt;button onclick="run()"&gt;contenteditable.focus() + document.execCommand("insertHTML", false, "&amp;lt;b&gt;ins&amp;lt;/b&gt;")&lt;/button&gt;</code></pre>
  </div>
  </div>
  </p>
  
  <p>What is the standard solution to this problem? It's okay if it only works in IE8 but IE7-support would be nice too. </p>