failed to load resource the server responded with a status of 404 () runtime.js code example

Example 1: failed to load resource: the server responded with a status of 404 (not found)

<script  src="../../Jquery/prettify.js"></script>

Example 2: failed to load resource the server responded with a status of 400 ()

The answer was the Wrapper class. It couldn't assign values to it and threw error because i set attributes to "private". Setting them "public" solved it for me.

Can't believe that was the error...