"Content-Length" override not work

[MrCarbone]

Bun.serve({
    port: 80,
    fetch(req) {
        return new Response("Hello World", {
            headers: { "Content-Length": "5" },
        });
    }
})

i expect it to show "Hello".

This was one of the issues fixed in Bun 1.1.43 , but it does not work in Bun 1.2.5

bun version 1.2.5 win64
windows 10