Cookies being set with missing path information from versions 3.5.25 to 3.6.0

[fnimick]

This was fixed in ff7e57d

I'm leaving this here in case others have the same problem. Simply updating the package does not solve the problem since any cookies set incorrectly on the /trpc path rather than the root (or on other paths) are preserved. My solution to clean up the broken cookies was, in hooks.server.ts:

const removeTrpcCookies: Handle = async ({ event, resolve }) => {
  // filter out any cookies set on the '/trpc' path - fixes an issue where
  // trpc-sveltekit was incorrectly proxying cookies without preserving options
  // and therefore setting outdated auth cookies on the '/trpc' path.

  // Once all clients have had this cookie removed, this handler can be removed as well.
  if (!event.url.pathname.startsWith("/trpc")) {
    const storageKey = <your cookie name here>
    event.cookies.delete(storageKey, { path: "/trpc" });
  }
  return resolve(event);
};