Auto-add `/` or throw error for `proxyBaseEndpoint` without start `/`

[maximepvrt]

If proxyBaseEndpoint is configured without a leading /, some requests may fail silently. For example, in my case, only the homepage was tracked correctly, while other pages were not.

Proposal:

Automatically prepend a / to proxyBaseEndpoint if missing, or throw an error/warning if the value does not start with /.

[johannschopplich]

Actually, that's the case already:

plausible/src/module.ts

Line 167 in 115d315

const proxyBaseEndpoint = withLeadingSlash(nuxt.options.runtimeConfig.public.plausible.proxyBaseEndpoint)

Can you please provide a reproducible example? Thanks!

[maximepvrt]

Fixed in #46
Now automatically prepends a leading slash to proxyBaseEndpoint if missing.