Handle response

index.html

@@ -89,7 +89,6 @@
         applyCarsBtn.addEventListener("click", applyCars);
 
         function applyCars() {
-            // Zoek alle car blocks
             const blocks = document.querySelectorAll(".car-block");
 
             let cars = [];
@@ -98,8 +97,8 @@
                 const carSelect = block.querySelector(".car-select");
                 const skinSelect = block.querySelector(".skin-select");
 
-                const carName = carSelect?.value || null;
-                const skinName = skinSelect?.value || null;
+                const carName = carSelect?.value || "";
+                const skinName = skinSelect?.value || "";
 
                 if (carName) {
                     cars.push({
@@ -109,7 +108,6 @@
                 }
             });
 
-            // Payload klaar
             const payload = { cars };
 
             console.log("Sending cars:", payload);