AngularJS "#!" on url
<p>someone knows what "#!" Means. on the url?</p>

<p>I was working until then this appears,I had a "#" always in the url and would like to keep it that way.
Currently routing is not working anymore,probably because of this url change.</p>

<p>It's part of a business project, i don`t want to change to html5Mode.</p>

<p>I tried to use:</p>

<pre><code>$locationProvider.hashPrefix("");
</code></pre>

<p>Even correcting the url in this way routing is having problems</p>