🐞 💥 Sitemap excludes should ignore trailing slashes

[rmehner]

I ran into #4621 on my project and wanted to fix this. I first thought that adding the slashes to the default excludes would be enough, but thinking a bit more about this, I actually think it's nicer if it just ignores the trailing slash, as this would also bite users for their custom exclude paths.

Alternatively one could install the gatsby-plugin-remove-trailing-slashes plugin, but I wanted this to work out of the box without dependencies to another module.

Let me know what you think about this, happy to adapt where it's needed.

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[KyleAMathews]

Makes sense! Thanks for the PR!

[jlengstorf]

Hiya @rmehner! 👋

This is definitely late, but on behalf of the entire Gatsby community, I wanted to say thank you for being here.

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