What does HTTP 308 mean?
The resource has moved permanently and the method and body must not change.
Common causes and when you see it
Like 301 but guarantees the HTTP method is preserved.
How to fix or handle it
Update clients and links to the new URL.
Test it yourself
Send a request with the online API tester, inspect the response with the HTTP header checker, or host an endpoint that returns 308 with the mock API generator to see how your app reacts.
HTTP 308 questions
The resource has moved permanently and the method and body must not change.
Like 301 but guarantees the HTTP method is preserved.
Update clients and links to the new URL.