Issue in qqfileuploader

Hi,

I have a issue in qqfileuploader. When i am trying to upload image then
get
error:

NetworkError: 500 Internal Server Error

I am using below code…I already set csrf token in request but still
get
error…
*
function createUploader(){
var uploader = new qq.FileUploader({
element: document.getElementById(‘file-uploader’),
action: ‘uploadimage’,
params: {
authenticity_token:
$(‘meta[name=csrf-token]’).attr(‘content’)
},
allowedExtensions: [‘png’, ‘gif’, ‘jpg’, ‘jpeg’],
multiple: false
});
}

// in your app create uploader as soon as the DOM is ready
// don't wait for the window to load
window.onload = createUploader;

If any have a solutions then please send me asap.
Thanks.