diff --git a/assets/script.js b/assets/script.js
index 4e92912..d13382d 100644
--- a/assets/script.js
+++ b/assets/script.js
@@ -12,16 +12,6 @@ function isLoggedIn() {
     return UserInfo.Email && 0 < UserInfo.Email.length;
 }
 
-function until(conditionFunction) {
-
-    const poll = resolve => {
-        if(conditionFunction()) resolve();
-        else setTimeout(_ => poll(resolve), 400);
-    }
-
-    return new Promise(poll);
-}
-
 async function handleResponse(data, successMessage, failureMessage) {
     "use strict";
     const statusMessageContainer = document.getElementById("statusMessageContainer");
@@ -588,24 +578,26 @@ async function getFileList() {
     let formData = new FormData();
     formData.append('action', 'getAllFiles');
 
-    let xhr = new XMLHttpRequest();
-    xhr.open('POST', '/upload', true);
+    try {
+        const response = await fetch('/upload', {
+            method: 'POST',
+            body: formData
+        });
 
-    let tmp;
-    xhr.onload = function () {
-        if (xhr.status === 200) {
-            const resp = JSON.parse(xhr.responseText);
-            if (resp.Status == "Success") {
-                tmp = resp.Files;
-            }
-            else {
-                tmp = false;
-            }
+        if (!response.ok) {
+            throw new Error('Network response was not ok');
         }
-    };
-    xhr.send(formData);
-    until(_ => (tmp === undefined));
-    return tmp;
+
+        const resp = await response.json();
+
+        if (resp.Status === "Success") {
+            return resp.Files;
+        } else {
+            return false;
+        }
+    } catch (error) {
+        return false;
+    }
 }
 
 async function listFiles() {