async handler

Author: birkskyum

src/routes/solid-start/v2/reference/config/solid-start.mdx

@@ -143,6 +143,8 @@ Path to a module whose default export handles values thrown by server functions
 
 The handler can report the original value and return a safer replacement for the client. Return `undefined` to preserve the original value. The module is bundled only into the server, so it can import server-only code.
 
+The handler may be async. SolidStart awaits it before serializing the error, allowing monitoring services to flush first.
+
 ```tsx title="vite.config.ts"
 solidStart({
 	serverFunctions: {