Why Retool's PDF Component Doesn't Render Your Signed S3 URL (And How to Fix It)

Original author: Arsany Milad - Engineer @ Stackdrop Retool's PDF component uses fetch() to load files. Browsers enforce CORS on fetch requests. If your S3 bucket isn't configured to allow requests from Retool's origin, the request gets blocked silently and the component renders nothing. Adding Ret