JSFiddle - React, Tailwind, and code Playground

HTML

<link rel="stylesheet" href="//netdna.bootstrapcdn.com/bootstrap/3.0.3/css/bootstrap.min.css">
<script src="//netdna.bootstrapcdn.com/bootstrap/3.0.3/js/bootstrap.min.js"></script>
<p>Vanilla Bootstrap 3.0.3 Popover focus-trigger confirmed not working on Firefox 25.0.1 and Safari 7.0 9537.71 both on OS X Mavericks.</p>

<div class="btn-group-vertical">
    <button class="btn" data-trigger="click">Click</button>
    <button class="btn" data-trigger="hover">Hover</button>
    <button class="btn" data-trigger="focus">Focus</button>
</div>

CSS

body {
    padding: 20px;
}

JavaScript

$('.btn').popover({
    container: 'body',
    content: 'Contents'
}).click(function(e) { 
       e.preventDefault(); 
       $(this).focus(); 
   });