测试

app/design/frontend/Joshine/breeze/Magento_Catalog/templates/product/view/form.phtml

@@ -52,17 +52,6 @@
                 $('.swatch-attribute-selected-option-size-content').hide();
             }
         });
-        window.onload = function(){
-            if($('.swatch-attribute .swatch-option'))
-            {
-                var swatchObj = $('.swatch-attribute');
-
-                for(var i=0;i<swatchObj.length;i++)
-                {
-                    $(swatchObj[i]).find('.swatch-option:first').trigger('click');
-                }
-            }
-        }
     });
 </script>
 

app/design/frontend/Joshine/breeze/Magento_Swatches/web/js/swatch-renderer.js

@@ -1493,6 +1493,15 @@ define([
             var galleryObject = element.data('gallery');
 
             this.options.mediaGalleryInitial = galleryObject.returnCurrentImages();
+            if($('.swatch-attribute .swatch-option'))
+            {
+                var swatchObj = $('.swatch-attribute');
+
+                for(var i=0;i<swatchObj.length;i++)
+                {
+                    $(swatchObj[i]).find('.swatch-option:first').trigger('click');
+                }
+            }
         },
 
         /**