fix: worker relative base should use import.meta.url

[patak-dev]

Description

Fixes bug report 2. at:

• use relative asset paths sveltejs/kit#4250 (comment)

From that comment:

When building with base: './', workers are instantiated with new Worker('../../path/to/worker.js'), rather than with a root-relative path beginning with base. But that's wrong — the path will be relative to the document, not the module instantiating the worker. I think it should be something like this:

new Worker(new URL('../../path/to/worker.js', import.meta.url).href)

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What is the purpose of this pull request?

• Bug fix
• New Feature
• Documentation update
• Other

[tony19]

Nit:

Suggested change

	)},import.meta.url).href`
	)}, import.meta.url).href`

[tony19]

Oh. Is the return value supposed to be minified output, where that space is intentionally omitted?

[patak-dev]

Yes, but I think we could add the space. It will be minified later 👍🏼

[patak-dev]

Actually we should review all these if we do in a separate PR (there are several snippets like this in the code base)

[bluwy]

Other than @tony19's comment of the console.log, this looks good to me