resources/js/pages/StockProducts/Show.vue

 })
 
 const exportExcel = () => {
-  return (
-    '/stock-products/history/excel' +
-    location.search +
-    `&product_number=${props.productNumber}`
-  )
+  if (location.search.length) {
+    return (
+      '/stock-products/history/excel' +
+      location.search +
+      `&product_number=${props.productNumber}`
+    )
+  } else {
+    return `/stock-products/history/excel?product_number=${props.productNumber}`
+  }
 }
 </script>