docs + freebox parsing issue #927

front/js/common.js

@@ -410,6 +410,14 @@ function isValidBase64(str) {
   return invalidCharacters === '';
 }
 
+// -------------------------------------------------------------------
+// Utility function to check if the value is already Base64
+function isBase64(value) {
+  const base64Regex =
+    /^(?:[A-Za-z0-9+\/]{4})*?(?:[A-Za-z0-9+\/]{2}==|[A-Za-z0-9+\/]{3}=)?$/;
+  return base64Regex.test(value);
+}
+
 // ----------------------------------------------------
 function isValidJSON(jsonString) {
   try {