Uploading the file with AJAX

SendFile.js

function sendFile(fileData) {
	var formData = new FormData();

	formData.append('imageData', fileData);

	$.ajax({
		type: 'POST',
		url: '/your/upload/url',
		data: formData,
		contentType: false,
		processData: false,
		success: function (data) {
			if (data.success) {
				alert('Your file was successfully uploaded!');
			} else {
				alert('There was an error uploading your file!');
			}
		},
		error: function (data) {
			alert('There was an error uploading your file!');
		}
	});
}