Add file upload

assets/script.js

@@ -544,6 +544,7 @@ function uploadFile() {
     const file = fileInput.files[0];
     let formData = new FormData();
     formData.append('userfile', file);
+    formData.append('action', 'uploadFiles');
 
     let xhr = new XMLHttpRequest();
     xhr.open('POST', '/upload', true);

pages/home/upload.html

@@ -2,7 +2,6 @@
 <page minimal_permission_level="2" secret="yes" page_title="Súbory"></page>
 <form id="uploadForm" enctype="multipart/form-data" method="POST">
     <label for="fileInput">Send this file: </label>
-    <input type="hidden" name="action" value="uploadFiles">
     <input name="userfile" type="file" id="fileInput" />
     <input type="button" value="Send File" onclick="uploadFile()" />
 </form>