diff --git a/lib/script_data.php b/lib/script_data.php
index 4ab3ce1..c657d23 100644
--- a/lib/script_data.php
+++ b/lib/script_data.php
@@ -6,8 +6,8 @@ function generateScriptData($phpArray):string {
         // Generate JavaScript code to save each array element to local storage
         $out = "<script>";
         foreach ($phpArray as $key => $value) {
-            $escapedKey = addslashes($key); // Escape special characters in the key
-            $escapedValue = addslashes($value); // Escape special characters in the value
+            $escapedKey = addslashes(strval($key)); // Escape special characters in the key
+            $escapedValue = addslashes(strval($value)); // Escape special characters in the value
 
             $out .= "localStorage.setItem('$escapedKey', '$escapedValue');";
         }