It's a simple function to get the URL params,
you can send the URL within the method parameters 
or you can use 'window.location.href' to get the actual URL.

Obs: This only works for all the URL, if you just want to 
send the params (after the '?'), you have to send a '?' before the params. 

function getUrlParams(url) {
  var params = {};

  url.replace(/[?&]+([^=&]+)=([^&]*)/gi, function(str, key, value) {
    params[key] = value;

  return params;