Ecommerce Shopify WordPress Discussion

Next.js + WordPress Website Deployed on Vercel – Inconsistent 404 Errors Across Devices

I'm facing a perplexing issue with my website after deploying it to Vercel. Here's the setup: Technologies: Next.js (unfamiliar to me), WordPress (subdomain), Faust, GraphQL plugin Vercel Configuration: Faust secret key and WordPress URL set within Next.js project Domain: Custom domain added and verified in Vercel. My Problem: The website works seamlessly on the Vercel domain. After attaching my custom domain, the website loads inconsistently across devices: Works on some Android devices 404 errors on iPhone 13 and some desktops Inconsistent results from web speed and load testing tools My Questions: Faust Frontend Site URL: Should this be set to my Vercel domain or the custom domain? Next.js public_site_url: What should the optimal value be in this scenario? I've spent three days trying to find a solution without success. I would greatly appreciate guidance from the Stack Overflow community regarding: What could be contributing to these device-specific errors? How can I effectively isolate the source of the problem? Are there any configuration tips for this specific setup to ensure consistency?
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