title: How to remove script tags from the markdown input by the user?
body: <p>In my php application I have this textarea box that receives markdown from the users (like stackoverflow's) then it is displayed on the website. I am using the Laravel Framework and using <a href="https://github.com/maxhoffmann/parsedown-laravel" rel="nofollow">parsedown-laravel</a> package.<br>
  I can do:  </p>
  
  <pre><code>{!! Markdown::parse('__Hello__ Markdown!'); !!}
  </code></pre>
  
  <p>It works.</p>
  
  <pre><code>{!! Markdown::parse('&lt;h1&gt;Hello&lt;/h1&gt; Markdown!'); !!}
  </code></pre>
  
  <p>It still works. And I am ok with that.  </p>
  
  <p>Now if I do:  </p>
  
  <pre><code>{!! Markdown::parse('&lt;script&gt;alert("XSS Attack!!!")&lt;/script&gt; Markdown!'); !!}
  </code></pre>
  
  <p><em>It still works!!!</em></p>
  
  <p>How can I prevent script tags in my app using Laravel and this package? </p>