Hello, I'm trying to make an edge api route. (pages route)

export const config = { runtime: "edge" }

And used Response class to send response (as suggested by the docs) and seems like it didn't work. res.send works fine. But when I push it to cloudflare pages, it cannot find it as edge function and asks me to add the export const config = { runtime: 'edge' } where i already have.

I also tried to copypaste the code from docs and guess what, it didn't work !

Am I missing something, please help