diff --git a/src/env/common.ts b/src/env/common.ts
--- a/src/env/common.ts
+++ b/src/env/common.ts
@@ -107,9 +107,8 @@ export const GCP_PROJECT_ID: number =
 /**
  * URLs for the app config web worker. Can be a
  * locally running server, see `env.example` for more.
+ * Disabled for self-hosted environment to avoid CORS errors
  */
 export const BAPP_CONFIG_DEV_URL = process.env.BAPP_CONFIG_DEV_URL
 export const BAPP_CONFIG_PROD_URL = `https://ip.bsky.app`
-export const BAPP_CONFIG_URL = IS_DEV
-  ? (BAPP_CONFIG_DEV_URL ?? BAPP_CONFIG_PROD_URL)
-  : BAPP_CONFIG_PROD_URL
+export const BAPP_CONFIG_URL = null