Update templates/cart.html

templates/cart.html

@@ -570,37 +570,45 @@
 
 
        
-        function proceedToOrder() {
-            let couponDropdown = document.getElementById('couponDropdown');
+function proceedToOrder() {
+    let couponDropdown = document.getElementById('couponDropdown');
     
-            // Check if the coupon dropdown exists and is visible
-            let selectedCoupon = ""; // Default to an empty string if no coupon dropdown exists
-            if (couponDropdown) {
-                selectedCoupon = couponDropdown.value ? couponDropdown.value.trim() : ""; // Safely handle if value is null or undefined
-            }
+    // Initialize selectedCoupon to an empty string by default
+    let selectedCoupon = "";
     
-            // Proceed without coupon if none is selected (or if dropdown is missing)
-            if (selectedCoupon === "" || selectedCoupon === "None" || selectedCoupon === "Null") {
-                selectedCoupon = null; // Treat as no coupon selected
-            }
-
-            // Send the selected coupon to the backend for processing
-            fetch('/checkout', {
-                method: 'POST',
-                headers: { 'Content-Type': 'application/json' },
-                body: JSON.stringify({ selectedCoupon: selectedCoupon })
-            })
-            .then(response => response.json())
-            .then(data => {
-                if (data.success) {
-                    alert(data.message); // Success message
-                    window.location.href = '/order';  // Redirect to order page
-                } else {
-                    alert(data.error || data.message);  // Handle error message
-                }
-            })
-            .catch(err => console.error('Error during checkout:', err));
+    // Only proceed if couponDropdown exists
+    if (couponDropdown) {
+        // If the value is not null or undefined, strip the value
+        if (couponDropdown.value != null) {
+            selectedCoupon = couponDropdown.value.trim();  // safely call .trim() if value is not null
+        } else {
+            selectedCoupon = "";  // Assign empty string if value is null
+        }
+    }
+
+    // If no coupon is selected or the value is empty, treat it as no coupon
+    if (selectedCoupon === "" || selectedCoupon === "None" || selectedCoupon === "Null") {
+        selectedCoupon = null;  // Treat it as no coupon selected
+    }
+
+    // Send the selected coupon to the backend for processing
+    fetch('/checkout', {
+        method: 'POST',
+        headers: { 'Content-Type': 'application/json' },
+        body: JSON.stringify({ selectedCoupon: selectedCoupon })
+    })
+    .then(response => response.json())
+    .then(data => {
+        if (data.success) {
+            alert(data.message); // Success message
+            window.location.href = '/order';  // Redirect to order page
+        } else {
+            alert(data.error || data.message);  // Handle error message
         }
+    })
+    .catch(err => console.error('Error during checkout:', err));
+}
+
 
 
         function calculateSubtotal() {