NoJS mode is broken: initFromFlash cookie does not populate submission props

Describe the bug

When user submits a form in NOJS mode, SolidStart sets a "flash=" cookie and redirects back to the same url:

During SSR it executes initFromFlash logic and extracts submission info from cookie: https://github.com/solidjs/solid-router/blob/10b7d8ce03d3aef11074199800bb78ea5fc1b426/src/routing.ts#L341

But unfortunately it does not become available in useSubmission hook: https://github.com/solidjs/solid-router/blob/10b7d8ce03d3aef11074199800bb78ea5fc1b426/src/data/action.ts#L27

Probably something is broken with reactivity or context on server-side...

Your Example Website or App

Please update demo link to fork using SolidStart 1.0

Steps to Reproduce the Bug or Issue

Create a new route file, for example src/routes/demo.tsx:


import { action, useSubmission } from '@solidjs/router'
import { getRequestEvent } from 'solid-js/web'

const myAction = action(async (formData: FormData) => { 'use server' const value = String(formData.get('test')) await new Promise((resolve) => setTimeout(resolve, 1000)) return It works! ${value} }, 'myAction')

export default function RouteExample() { const submission = useSubmission(myAction) console.log(getRequestEvent()?.router?.submission?.url) // _server?id=%2FUsers%2Fsite%2Fy%2Fsrc%2Froutes%2Fx.tsx%3Fpick%3Ddefault%26pick%3D%24css&name=%24%24function0 console.log(getRequestEvent()?.router?.submission?.result) // 'It works! 123' console.log(submission.result) // undefined console.log(submission.url) // undefined return (

) }


2. Disable JS in your browser, open the page and submit the form
3. See server console

### Expected behavior

Last submission data is available during SSR

### Screenshots or Videos

_No response_

### Platform

- "@solidjs/router": "^0.13.5",
- "@solidjs/start": "^1.0.1",

### Additional context

[Link to the thread in Discord with additional details](https://discord.com/channels/722131463138705510/910635844119982080/1252153969321443358), see also https://github.com/solidjs/solid-start/pull/1552

solidjs / solid-router