Import wasm bug when running on production (nuxt preview)

Environment

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• Operating System: Darwin
• Node Version: v18.9.0
• Nuxt Version: 3.0.0-rc.10
• Nitro Version: 0.5.3
• Package Manager: yarn@1.22.19
• Builder: vite
• User Config: -
• Runtime Modules: -
• Build Modules: -

---

Reproduction

https://stackblitz.com/edit/github-2ebtve-l73ttp?file=nuxt.config.ts

I cannot reproduce it on stackblitz because Nuxt is not running in production there. That’s why I’ve created a repository with a minimal example of the problem here https://github.com/bitlands/wasm-import

Describe the bug

This bug is a follow up thing of https://github.com/nuxt/framework/issues/6703. When I run yarn dev everything works fine and the library can be loaded but when I run yarn run build & yarn run preview the following error appears when I go to the browser console at localhost:3000.

Uncaught (in promise) CompileError: WebAssembly.instantiate(): expected magic word 00 61 73 6d, found 3c 21 44 4f @+0

Additional context

Thanks for any help!

Logs

No response

[danielroe]

FYI, you can hit Ctrl-C to stop the dev server in stackblitz and then run npm run build && node .output/server/index.mjs (or hard-code that as the dev command in package.json) to reproduce within stackblitz alone in future issues.

[manniL]

@danielroe Thank you for considering this issue. In my opinion this is not a minor bug because it means that as long as this one is not fixed .wasm packages cannot be used with Nuxt 3 but I trust in your evaluation. Thank you!

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