Error for libraries that use context API inside a store

[JustinVoitel]

Description

It seems like something is broken when using stores that rely on getContext() in some way. Currently in my project the goto helper of routify and mutate() function of @urql/svelte are getting both the same error:

Reproduction

1. npm svite create -t routify-mdsvex -ts
2. add this to src/store.ts:

import { get, writable } from "svelte/store";
import { goto } from "@roxi/routify";

function createTestStore() {
  const store = writable({});

  return {
    subscribe: store.subscribe,
    gotoUrl: (url: string) => {
      const gotoRoutify = get(goto);
      gotoRoutify(url);
    },
  };
}

export const testStore = createTestStore();

3. add this to src/pages/index.svelte:

   
   <script lang="ts">
   import { testStore } from "./../store";
   
   function handleGoto() {
   testStore.gotoUrl("/bla");
   }
   </script>

Welcome to the routify example

Check out the link in the nav

goto

4. click button in dev

---

1. clone same repo 
2. add dependency `npm i @urql/svelte`
3. add this to `src/App.svelte`:
```svelte
<script lang="ts">
  import { Router } from "@roxi/routify/runtime";
  import { routes } from "../.routify/routes";

  import { initClient } from "@urql/svelte";

  initClient({ url: "/graphql" });
</script>

<Router {routes} />

4. add this to src/pages/index.ts:

   
   <script lang="ts">
   import { mutate } from "@urql/svelte";
   
   function handleClick() {
   mutate(SOME_QUERY).then((e) => {
     console.log(e);
   });
   }
   </script>

Welcome to the routify example

Check out the link in the nav

mutation

## Additional Information

- operating system: windows 10 wsl2
- versions for
  - node v14.8.0
  - npm 6.14.7
  - svite 0.7.1
  - vite 
  - svelte 3.26.0
- logs with debug enabled
  - start svite with `svite --debug` flag

[JustinVoitel]

will try to downgrade svite tomorrow till its working again and comment here

[JustinVoitel]

can confirm when using the latest ts template for routify-mdsvex (svite 0.7.1), downgrading svelte to version 3.24.1 will make my first reproduction example work again (and I guess my second one aswell)

[dominikg]

As discussed on discord, not caused by svite. See here for a brief description https://github.com/sveltejs/svelte/issues/4934

For routify goto, please follow the documented approach: https://routify.dev/docs/helpers#goto See here for an example with the url helper: https://github.com/dominikg/svite/blob/master/examples/routify-mdsvex/src/pages/_folder.svelte