It's happening something really weird to me: I can't see the changes on my mutations until I restart prisma (same when using the playground). The requests are working and responds with 200. Any idea? I'm using prisma/1.3.0-beta.5 (windows-x64) node-v8.9.4 with docker locally.

please see this for more information and a workaround https://github.com/graphcool/http-link-dataloader/issues/3

Is it a bug, then? Just to know if I should apply the workaround to all my code or wait for a fix.

it is. the workaround is one change for your entire code base though.

this doesnt seem to help with my deployed endpoint