Cookies don't work when using an Elysia instance

[facundo-villa]

Cookies don't get sent to subsequent requests when using Eden with an Elysia instance. Even when credentials: include is set.

I'm using Elysia version 1.1.9 and Eden 1.1.2

I expect set credential cookies to be sent to subsequent request, as to be able to correctly test endpoints that need authentication and/or tokens.

Cookies do work correctly when performing actual requests to the server from another HTTP client.

Sample code:

test("...", async () => {
	...

	const app = server(db); // Creates an Elysia instance
	const client = treaty(app, { fetch: { credentials: 'include' } });

       ...

	const response = await client.api.auth.token.post({ email: "..." });

	const users = await client.api.users.get(); // <-- This fails because cookies are not set

       ...
});

[facundo-villa]

@SaltyAom Could you look at this? This is blocking a lot of my tests.