Fix 4 console errors: guard old slider code, guard spinner null, guard GSAP empty-grid targets, replace CORS fetch with form-based buyNow

script.js

@@ -6,6 +6,7 @@ var si = 0,
                 autoStop = false,
                 autoInterval = 7000;
 
+            if (slides.length > 0 && dots.length > 0) {
             function show(i, direction) {
                 if (direction === undefined) return;
                 var current = slides[si];
@@ -67,20 +68,6 @@ var si = 0,
                 t = setInterval(nextSlide, autoInterval);
             }
 
-            window.addEventListener("load", function () {
-                var o = document.getElementById("spinner");
-                o.classList.add("hidden");
-                setTimeout(function () {
-                    o.style.display = "none";
-                }, 500);
-            });
-            setTimeout(function () {
-                var o = document.getElementById("spinner");
-                o.classList.add("hidden");
-                setTimeout(function () {
-                    o.style.display = "none";
-                }, 500);
-            }, 3000);
             t = setInterval(nextSlide, autoInterval);
 
             for (var s = 0; s < slides.length; s++) {
@@ -90,6 +77,21 @@ var si = 0,
                     t = null;
                 });
             }
+            }
+
+            /* spinner guard */
+            (function() {
+                var sp = document.getElementById("spinner");
+                if (!sp) return;
+                sp.classList.add("hidden");
+                setTimeout(function() { sp.style.display = "none"; }, 500);
+                setTimeout(function() {
+                    if (document.getElementById("spinner")) {
+                        document.getElementById("spinner").classList.add("hidden");
+                        document.getElementById("spinner").style.display = "none";
+                    }
+                }, 3000);
+            })();
 
                         document.querySelectorAll(".tab-btn").forEach(function (b) {
                 b.addEventListener("click", function () {
@@ -549,6 +551,7 @@ var si = 0,
                     entries.forEach(function (entry) {
                         if (!entry.isIntersecting) return;
                         var grid = entry.target;
+                        if (!grid || !grid.children || grid.children.length === 0) return;
                         var key = grid.className || 'anon';
                         if (animated[key]) return;
                         animated[key] = true;
@@ -572,7 +575,9 @@ var si = 0,
                 );
                 grids.forEach(function (g) {
                     /* Pre-set children invisible so no flash even before observer fires */
-                    gsap.set(g.children, { y: 30, opacity: 0 });
+                    if (g.children.length > 0) {
+                        gsap.set(g.children, { y: 30, opacity: 0 });
+                    }
                     observer.observe(g);
                 });
             })();
@@ -622,15 +627,24 @@ var si = 0,
                 });
             })();
 
-            /* Buy Now — POST product to Odoo shop basket, open cart in new window */
+            /* Buy Now — POST product to Odoo shop basket via form to avoid CORS, open cart in new window */
             window.buyNow = function (productId) {
-                fetch('https://ODOO4projects.com/shop/post_basket', {
+                var form = document.createElement('form');
-                    method: 'POST',
+                form.method = 'POST';
-                    headers: { 'Content-Type': 'application/json' },
+                form.action = 'https://ODOO4projects.com/shop/cart';
-                    body: JSON.stringify({
+                form.target = '_blank';
-                        basket: [{ product_id: productId, qty: 1 }],
+                form.style.display = 'none';
-                        clear: '1'
+                var pid = document.createElement('input');
-                    })
+                pid.type = 'hidden';
-                }).catch(function () { /* ignore CORS / network errors */ });
+                pid.name = 'product_id';
-                window.open('https://ODOO4projects.com/shop/cart', '_blank');
+                pid.value = productId;
+                form.appendChild(pid);
+                var qty = document.createElement('input');
+                qty.type = 'hidden';
+                qty.name = 'add_qty';
+                qty.value = '1';
+                form.appendChild(qty);
+                document.body.appendChild(form);
+                form.submit();
+                document.body.removeChild(form);
             };