Stop other sites from framing your pages on Shopify
Why it matters
Without frame-ancestors or X-Frame-Options any site can load your pages in an invisible frame and trick visitors into clicking buttons they cannot see. One header tells browsers which sites, if any, may frame them.
The fix
Not possible on Shopify. Shopify sets the storefront's framing headers itself and stores cannot add X-Frame-Options or frame-ancestors; a meta tag cannot carry frame-ancestors.
Related
Scan your domain to see whether this applies to you.