back. Defaults to a randomized string (e.g. <code>_mithril_6888197422121285_0({a: 1})</code></td>
</tr>
<tr>
<td><code>options.callbackKey</code></td>
<td><code>String</code></td>
<td>No</td>
<td>The name of the querystring parameter name that specifies the callback name. Defaults to <code>callback</code> (e.g. <code>/someapi?callback=_mithril_6888197422121285_0</code>)</td>
</tr>
<tr>
<td><code>options.background</code></td>
<td><code>Boolean</code></td>
<td>No</td>
<td>If <code>false</code>, redraws mount