Reference to style.xsl file doesn't work when using a subdirectory

[hbanham]

Describe the bug

For websites that are hosted in a subdirectory, for example https://example.com/subdirectory/{files}
I configure Nuxt's baseURL and Nitro's publicDir to output the site files in the subdirectory required.

The sitemap.xml references the style.xsl file using an absolute path:

This means that when we have a project that has a subdirectory structure, it cannot find the file because it is looking for
https://example.com/__sitemap__/style.xsl
instead of
https://example.com/subdirectory/__sitemap__/style.xsl

Maybe the href could be a relative path or perhaps use app.baseURL?

In the reproduction:

1. npm run dev (and go to /subdirectory/sitemap.xml)

or

1. npm run generate
2. npm run serve (and go to /subdirectory/sitemap.xml)

Thank you!

Reproduction

https://stackblitz.com/edit/nuxt-starter-wuerx5

System / Nuxt Info

System:
    OS: Windows 10 10.0.19044
    CPU: (8) x64 Intel(R) Core(TM) i7-8550U CPU @ 1.80GHz    
    Memory: 2.01 GB / 15.85 GB
  Binaries:
    Node: 18.12.0 - C:\Program Files\nodejs\node.EXE
    Yarn: 1.17.3 - C:\Program Files (x86)\Yarn\bin\yarn.CMD  
    npm: 8.19.2 - C:\Program Files\nodejs\npm.CMD
  Browsers:
    Chrome: 110.0.5481.177
    Edge: Spartan (44.19041.1266.0), Chromium (110.0.1587.57)
    Internet Explorer: 11.0.19041.1566

[harlan-zw]

Thank you @hbanham

The testing infrastructure I have doesn't have the baseURL support currently so I apologise for the regressions.

This should be fixed in 2.2.0 though