Fatal error on 404 - problem with Throw error

[Ohyenno]

Describe the bug

+page.ts has a load function with a fetch request

If the request status 404 -> it throws error 404
Thats works well

But if the user goes to another page from the menu and clicks on this page again svelte kit fetch in browser, istead of ssr
Throw error method is not supported in the browser, and everything returns an error of 500

Router is switched to false

Important note: if page throws error (404) the router switches to true then no page is reloaded again until refresh in the browser

Reproduction

console.log(await response.status); // return code server 404, but after using the navigation - return 404 in browser console
if(await response.status !== 200){
throw error (response.status);
}

Logs

client.js:362 <Error> was created with unknown prop 'data'
client.js:362 <Error> was created with unknown prop 'errors'

System Info

@sveltejs/kit@1.0.0-next.442

Severity

blocking all usage of svelte

[Conduitry]

Duplicate of sveltejs/kit#5952