feat: support sveltekit apps on non-http protocols

[kran6a]

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[kran6a]

Navigation works only if you set absolute hrefs on your links. i.e: <a href="about:srcdoc#about">about</a> to access the /about route. Otherwise it performs a full page reload to the iframe host's URL with the #about hash appended.

This is enough for my use case but might be worth improving it so <a href="#about">about</a> works out of the box.

[eltigerchino]

related #13231

[kran6a]

#13231

Closing in favor of #13231
I would check for the protocol starting with http though to support more protocols where single-file webs/apps are common like ipfs (which already some browser resolve), file or proprietary protocols.