I have some forms submitting on the site and the return URL is set to /thank-you
When you visit this page normally, it shows up fine. But when the form redirects to it, sometimes it comes up with the Netfliy Page Not Found error. Is there a reason for this and any way to prevent it from happening? It is very intermittent and only shows the error sometimes. Other times it works okay.
The form POSTs to an external URL which then returns the user back to the thank-you page. Not sure if this is related to the issue?
Just worth nothing that this is a custom form, not a netlify form.