cloudflare/workers-sdk @cloudflare/playground-preview-worker@0.3.0 on GitHub

#12771 b8c33f5 Thanks @penalosa! - Remove prewarm, inspector_websocket, and exchange proxy from preview flow
The preview session exchange endpoint (/exchange) has been removed from the edge-preview-authenticated-proxy — it has been unused since the dash started fetching the exchange URL directly (DEVX-979). The prewarm parameter is no longer required or accepted by the .update-preview-token endpoint.
The playground preview worker now treats exchange_url as optional, falling back to the initial token from the edge-preview API when exchange is unavailable. Inspector websocket proxying and prewarm have been removed in favour of using tail_url for live logs.