Hello!
I’ve noticed that with any e-commerce site I create using the Shopify Buy Button in conjunction with a page loader, the page shows briefly before my loading screen, the loader then shows up for a second, then disappears as it should, but not until the ugliness of the page has already been exposed without the products having been loaded yet.
CLICK HERE then click BUY NOW on any of the product images.
This will show you what I am talking about.
If you check out any of the other pages on the site, the loader works as expected. This is the case on any Shopify related site I have designed using the Buy Button. I imagine it’s something in the way Shopify has the hierarchy of the code set up, but I don’t really know enough about that to fully understand or do anything about it.