Media uploaded – File – not working correctly

Hi

I have created my own widget but I am struggling to get the file uploader to work correctly. I want to give the user the option to select documents from their media library but when I specify file as the library the upload dialog box is returning no files.

If I choose ‘image’ as the library then I can choose from any of the images already uploaded so it is just an issue with the library detection seemingly.

Here is the field initialisation code I am using:

'file' => array(
	'type' => 'media',
	'library' => 'file',
	'image_search' => false,
	'label' => __('File', 'so-widgets-bundle'),
	'description' => __('Choose the uploaded file.', 'so-widgets-bundle'),
)

Thanks,
James