Error debug hack - log when errors are created to find ones not logged or thrown

gistfile1.js

  var OrigError = Error;
  window.Error = function(arg1,arg2,arg3,arg4,arg5,arg6) {
    console.log('caught error: ', arg1, arg2,arg3,arg4,arg5,arg6);
    console.log(new OrigError().stack)
    return new OrigError(arg1,arg2,arg3,arg4,arg5,arg6);
  };