Cannot read properties of undefined (reading 'call')

[ambrt]

Describe the bug

It works in browser and Astro's npm run dev .
I'm getting this error when trying to test with Vitest of Astro page with svelte file.

TypeError: Cannot read properties of undefined (reading 'call')
 
// edited - moved to Logs section

Reproduction

If required then later might try to repro. Its big page with runes, functions passed as props and template.
EDIT:
https://stackblitz.com/edit/github-ch9tapzs?file=test%2Fhappy-dom-env.test.ts&on=stackblitz
After dependencies install, stop npm in terminal and run npm run test

Logs

TypeError: Cannot read properties of undefined (reading 'call')
 ❯ get_first_child node_modules/svelte/src/internal/client/dom/operations.js:81:28
     80| /**
     81|  * @template {Node} N
     82|  * @param {N} node
       |      ^
     83|  * @returns {Node | null}
     84|  */
 ❯ eval node_modules/svelte/src/internal/client/dom/template.js:48:91
 ❯ eval node_modules/svelte/src/internal/client/dev/elements.js:13:15
 ❯ Test src/components/test.svelte:15:12
 ❯ render node_modules/svelte/src/internal/server/index.js:121:2
 ❯ Object.renderToStaticMarkup node_modules/@astrojs/svelte/server.js:45:49
 ❯ renderFrameworkComponent node_modules/astro/dist/runtime/server/render/component.js:189:68
 ❯ renderComponent node_modules/astro/dist/runtime/server/render/component.js:368:10

System Info

System:
    OS: Linux 5.15 Ubuntu 22.04.5 LTS 22.04.5 LTS (Jammy Jellyfish)
    CPU: (2) x64 Intel(R) Core(TM)2 Duo CPU     E4500  @ 2.20GHz
    Memory: 464.32 MB / 3.82 GB
    Container: Yes
    Shell: 5.1.16 - /bin/bash
  Binaries:
    Node: 20.11.1 - ~/.nvm/versions/node/v20.11.1/bin/node
    Yarn: 1.22.17 - /usr/local/bin/yarn
    npm: 10.2.4 - ~/.nvm/versions/node/v20.11.1/bin/npm
    pnpm: 9.15.2 - ~/.local/share/pnpm/pnpm
    bun: 1.1.6 - ~/.bun/bin/bun
    Watchman: 20201115.021953.0 - /usr/local/bin/watchman
  Browsers:
    Chrome: 132.0.6834.83
  npmPackages:
    svelte: ^5.1.3 => 5.16.2

Severity

blocking all usage of svelte

[Conduitry]

A reproduction is required, yes.

[ambrt]

Error happens in happy-dom and jsdom environments:

https://stackblitz.com/edit/github-ch9tapzs?file=test%2Fhappy-dom-env.test.ts&on=stackblitz
(After dependencies install, stop npm in terminal and run npm run test)

JSDom, throws same error as happy-dom , but since stackblitz has node v18, JSDom would fail with non svelte related issue.
So only happy-dom test is in the repro.

Test passes in plain node environment.