diff --git a/web/nfc-theme/static/user.js b/web/nfc-theme/static/user.js
index d481413..b2a65ed 100644
--- a/web/nfc-theme/static/user.js
+++ b/web/nfc-theme/static/user.js
@@ -23,7 +23,7 @@ if ( !Cookies.get('nfcexplorer') ) {
 }
 
 const ua = String(platform.os);
-const cat = document.querySelector('meta[data-category]').content
+const cat = document.querySelector('meta[data-category]').getAttribute("data-category");
 
 fetch('https://nmns.place/track?' + new URLSearchParams({
     hash: Cookies.get('nfcexplorer'),