Unexpected Error Status Code

[alialaa]

Describe the bug

I am trying to throw an error in a page's +page.js file. In this simple example I am using the status code returned from an API which in this example should be 404. In +error.svelte I am displaying the error status using $page.status which works fine when you first load the page; but always returns 500 when you navigate from and then back to the page. $page.error.status works consistently though.

I am not sure if that's a bug or $page.status is different than $page.error.status for some reason?

Reproduction

https://stackblitz.com/edit/sveltejs-kit-template-default-bdr4bj?file=src/routes/+error.svelte

Logs

No response

System Info

System:
    OS: macOS 12.1
    CPU: (8) arm64 Apple M1
    Memory: 74.94 MB / 16.00 GB
    Shell: 5.8 - /bin/zsh
  Binaries:
    Node: 16.16.0 - /usr/local/bin/node
    Yarn: 1.22.11 - ~/.npm-global/bin/yarn
    npm: 8.11.0 - /usr/local/bin/npm
    Watchman: 2022.03.21.00 - /opt/homebrew/bin/watchman
  Browsers:
    Chrome: 104.0.5112.101
    Safari: 15.2
  npmPackages:
    @sveltejs/adapter-auto: next => 1.0.0-next.66 
    @sveltejs/kit: ^1.0.0-next.423 => 1.0.0-next.443 
    svelte: ^3.44.0 => 3.49.0 
    vite: ^3.0.0 => 3.0.9

Severity

annoyance

Additional Information

No response

[Rich-Harris]

This is a duplicate of #5952