Shim for console.log in IE9 when run without developer tools

shim.js

// Shim console.log for IE9 when not run in with developer tools opened
// Stores log messages in window.consoleLog so you can retreive them when you open the tools.
(function () {
  /*global window */
  if (!window.console) {
    window.consoleLog = [];
    window.console = {
      log: function (msg) {
        window.consoleLog.push([msg, (new Date()).toIsoString()]);
      }
    };
  }
})();