in your README file has a error

[bengben]

onUploadProgress:

onUploadProgress: function(id, percent){ console.log('Upload of #' + id ' is at %' + percent); // do something cool here! }

it's error

-------------------" + here " ----------------

onUploadProgress: function(id, percent){ console.log('Upload of #' + id + ' is at %' + percent); // do something cool here! }

[reinierkors]

Also at:

onFallbackMode: function(message){
  console.log('Upload plugin can't be initialized: ' + message);
}

should be

onFallbackMode: function(message){
 console.log('Upload plugin can\'t be initialized: ' + message);
}