add Authorization token to Dropzone uploadForm only if it present in url

Author: p-andrey

src/views/index.blade.php

@@ -281,12 +281,16 @@
           }
         });
       },
-      headers: {
-        'Authorization': 'Bearer ' + getUrlParam('token')
-      },
       acceptedFiles: "{{ implode(',', $helper->availableMimeTypes()) }}",
       maxFilesize: ({{ $helper->maxUploadSize() }} / 1000)
     }
+
+    var token = getUrlParam('token');
+    if (token !== null) {
+      Dropzone.options.uploadForm.headers = {
+        'Authorization': 'Bearer ' + token
+      };
+    }
   </script>
 </body>
 </html>