diff --git a/src/static/js/helper.js b/src/static/js/helper.js
index 02e9aa493162cdfdc16dbc29327761759b663fa1..8c210f416c6eb500218cfb4fa808a510b0dfb5b9 100644
--- a/src/static/js/helper.js
+++ b/src/static/js/helper.js
@@ -1,6 +1,10 @@
 async function fetchAPI(endpoint, options) {
     const res = await fetch(endpoint, options);
-    const data = await res.json();
+    const contentType = res.headers.get('content-length');
+    let data
+    if (!contentType.includes("0")) {
+        data = await res.json();
+    }
     if (res.ok) {
         return data;
     }