{base} is deprecated.

[judah-sotomayor]

{base} is used heavily in this application.
According to svelte it is now deprecated.
https://svelte.dev/docs/kit/$app-paths#base

It should be replaced with the resolve() function.
https://svelte.dev/docs/kit/$app-paths#resolve

[chrisvire]

When using asset(), make sure to have the resource path starting with a slash. Test with:

( export BUILD_BASE_PATH=/foo/bar; npm run build && npm run preview)