Added a function to return the json upon request from the view via AJAX after the rest of the document loads. This will allow the rest of the page to load in cases of large graph visualizations that may take a few seconds.
Added a jQuery / AJAX call from the client using the $( document ).ready(function() to load the visualization of the graph after the entire document is done loading. This also allowed the removal of the _eval() javascript function which is a potential security risk.