title: Laravel Stapler Get url with '\'
body: <p>i'm developing with Laravel. I will use Codesleeve Stapler and it work in local.
  But when i deployed my app. The image doesn't display in firefox.</p>
  
  <p>when i write this               </p>
  
  <pre><code>&lt;img src="{!! $cat_tampon-&gt;image_categorie-&gt;url('medium')!!}" /&gt;
  </code></pre>
  
  <p>I get</p>
  
  <pre><code>&lt;img src="img/img_categorie/1/medium/\PostaMetal.jpg" /&gt;
  </code></pre>
  
  <p>When I delete '\' into the url, image is displaying. </p>
  
  <p>my model</p>
  
  <pre><code>public function __construct(array $attributes = array()){
          $this-&gt;hasAttachedFile('image_categorie', [
              'styles' =&gt; [
                  'medium' =&gt; '250x250'
              ],
              'default_url' =&gt; '/img/img_categorie/0_default/:style/image_non_dispo.png',
              'url' =&gt; '/img/img_categorie/:id/:style/:filename',
          ]);
  
  
          parent::__construct($attributes);
      }
  </code></pre>
  
  <p>I don t know how to resolve that, can you help me pls</p>
  
  <p>PS : It works on google chrome</p>