Merge remote-tracking branch 'origin/develop' into develop

@@ -414,7 +414,7 @@
                  */
                 onAddToCart: (selection)=> {
                     $.post('/product/cart.json', {
-                        productSku: selection.sizeId,
+                        productSku: selection.size,
                         buyNumber: 1
                     }).then((result)=> {
                         // TODO: 库存不足 后台暂未实现