Angular 2 - replace history instead of pushing
<p>How to replace a history instead a pushing a new in angular 2's new router (rc.1)?</p>

<p>For example Im in a question list (<code>/questions</code>) opening a new modal in a new route (<code>/questions/add</code>), and after adding a new question I go to the question view (<code>/questions/1</code>). If I press back I would like to go to the <code>/questions</code> instead of <code>/questions/add</code></p>