Describe the bug

When import is used in classic worker, the following error happens during dev.

Uncaught SyntaxError: Cannot use import statement outside a module

But build works with it and the bundle seems to be correctly bundled.

According to the docs, import can be used inside classic worker if worker is imported with query suffixes.
There is no mention about constructor type worker import. But if it is the recommended way, I think it would be good to support it too. Also it is useful for #8466.

#8466 (comment) might be related.

Reproduction

https://stackblitz.com/edit/vitejs-vite-mhmcjy?file=main.js

System Info

stackblitz

Vite: 2.9.9, 3.0.0-alpha.9

Used Package Manager

npm

Logs

No response

Validations

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