I have an app with Next.js that is hosted on Netlify. It's a very high traffic app, and there are some routes which are frequently emdeded by users in an iframe. On the embedded pages, we're noticing a very high (~20-30%) rate of errors in Google Analytics, mostly for visitors in Safari (but not exclusively).
The error message the users see is "kCFErrorDomainCFNetwork error 310". I've searched for that, and I can't find any documentation about what the error means or hints what the cause might be. Does anyone know what "kCFErrorDomainCFNetwork error 310" is or have any idea what might cause >20% of our visitors to see this error?