Symfony 3.3中的图像裁剪代码在localhost上运行良好，但在实时网站中不起作用

Question

因此，我最近看到了一个教程，并在网站上创建了图像裁剪和上传功能。就我而言，我有：-

  a. Title
  b. Description
  c. Image
  d. Date

最初，当单击文件浏览器时，我的操作与本教程中的操作完全相同，该图像将安装在Bootstrap 4模式中，该模式具有裁剪功能。那里的主要问题是当我单击该裁剪按钮时，ajax用于运行并将所有数据持久保存到数据库中。后来我更改了JavaScript，以便在单击“裁剪”按钮时显示裁剪的图像，最后，“提交”按钮会将所有数据保存在数据库中。此功能在Localhost中运行良好，但是当我在实时网站中更新时，该功能似乎无法正常工作。

JavaScript代码：

 $('.crop_image').click(function(event){
$image_crop.croppie('result', {
  type: 'canvas',
  size: 'viewport'

}).then(function(response){
    $('#uploadimageModal').modal('hide');
    $("#previewImg").attr('src', response);
    getResponse = response;
});

$('#upload_btn').on('click',function(){


            var block = getResponse.split(";");
            // Get the content type
            var contentType = block[0].split(":")[1];// In this case "image/gif"
            // get the real base64 content of the file
            var realData = block[1].split(",")[1];// In this case "iVBORw0KGg...."

            // Convert to blob
            var blob = b64toBlob(realData, contentType);

            let formData = new FormData(form);
            formData.append('image_path', blob);
            $.ajax({

            url: "{{ path('app_bundle_route') }}",
            type: 'POST',
            data: formData,
            processData: false,
            contentType: false,
            headers: {'X-Requested-With':'XMLHttpRequest'},
            success:  function(data){


                $("#previewImg").attr('src', getResponse);
            }
          });

控制器：

/**
 * @Security("is_granted('ROLE_ADMIN')")
 * @Route("/form", name="form")
 */
public function indexAction(Request $request) {
    $members = new members();
    $form = $this->createForm(event::class, $members);

    $form->handleRequest($request);
    if ($form->isSubmitted() && $form->isValid()) {

            return $this->redirectToRoute('dev');
    }
    return $this->render('admin/create.html.twig', [
                'form' => $form->createView()
    ]);
}

/**
* @Security("is_granted('ROLE_ADMIN')")
* @Route("/getImage", name="getImage")
* @Method({"POST"})
*/

public function getImageAction(Request $request){

            $members = new members();
              $form = $this->createForm(event::class, $members);

        $form->handleRequest($request);

        if($form->isSubmitted() && $form->isValid()){


                if($request->isXmlHttpRequest()){
                  /** @var Symfony\Component\HttpFoundation\File\UploadedFile $file */
                $file = $request->files->get('image_path');
                //$file = $form->get('image_path');



                $filename = md5(uniqid()).'.'.$file->guessExtension();

                $file->move($this->getParameter('event_directory'), $filename);

                $title = $form['title']->getData();
                $description = $form['description']->getData();
                $date = $form['date']->getData();

                $members->setImagePath($filename);
                $members->setTitle($title);
                $members->setDescription($description);
                $members->setDate($date);
                $em = $this->getDoctrine()->getManager();
                $em->persist($members);
                $em->flush();
                $this->addFlash(
                        'notice', 'Event Added!!'
                );
            }                
        }
        return new JsonResponse("This is Ajax");
 }

我已多次删除缓存，但是没有用。确切的代码可在Localhost中使用。