Font-Awesome-Rails CSS spinner not working in Safari
<p>I'm using the <code>font-awesome-rails</code> gem to show a css spinner when the submit button of a <code>form_for</code> is clicked. The spinner works perfectly in Chrome and Firefox but doesn't appear in Safari. I'm on OSX El Capitan 10.11.15 and hosting on Heroku. I'm also using Bootstrap 3.</p>

<p>My submit button looks like this:</p>

<pre><code>&lt;%= f.submit "Save Changes", class: "btn btn-default", data: {disable_with: "&lt;i class='fa fa-spinner fa-spin'&gt;&lt;/i&gt; Saving Changes..."} %&gt;
</code></pre>