Returns a non-empty object when the query parameters are empty

[kikito]

A couple tests:

console.log(window.getQueryParameters(""));
console.log(window.getQueryParameters("?"));

This returns something like {"": undefined}.

[kikito]

Here is my not-one-liner fix:

window.getQueryParameters = function(str) {
  var param_str = (str || document.location.search).replace(/(^\?)/,'');
  if(!param_str) { return {}; }
  return param_str.split("&").reduce(function(o,n){n=n.split('=');o[n[0]]=n[1];return o},{});
}

[kikito]

Sent a pr with a one-liner which is compatible with IE > 8 only. I also updated my not-one-line fix so that it is proper js (was missing var and return)