Pretty urls when deploying multiple repositories in a single site

Support
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1

I did follow [Support Guide] Can I deploy multiple repositories in a single site? to deploy a blog in a subfolder eg. https://www.test.com/blog

The issue that I have with this method is that the “pretty url” feature does not help me to enforce a trailing slash for all blog urls.

I have added

[[redirects]]
  from = "/blog/*"
  to = "https://my-blog.netlify.app/blog/:splat"
  status = 200

But when I visit https://www.test.com/blog I get 200. But I would like to get 301 to https://www.test.com/blog/ (with trailing slash)

I did try

[[redirects]]
  from = "/blog/*/"
  to = "https://my-blog.netlify.app/blog/:splat"
  status = 200

[[redirects]]
  from = "/blog/*"
  to = "/blog/:splat/"
  status = 301

But this does not has an effect because Netlify will match paths to rules regardless of whether or not they contain a trailing slash:

What this means for your redirect rules is that Netlify will match paths to rules regardless of whether or not they contain a trailing slash.

These rules are effectively the same:

either rule alone would trigger on both paths

/blog/title-with-a-typo /blog/typo-free-title
/blog/title-with-a-typo/ /blog/typo-free-title

This rule will cause an infinite redirect

because the paths are effectively the same

/blog/remove-my-slashes/ /blog/remove-my-slashes 301!

I am unable to find a solution to this problem.

2

@receter Whenever the built in redirects/rewrites system either doesn’t handle a system, or becomes unwieldy, the answer provided tends to be to use an Edge Function.

The last post in this thread for example:
https://answers.netlify.com/t/enforce-trailing-slash-through-js/106995

Links to this GitHub:
https://github.com/ascorbic/slash-edge

Which has this example:
https://trailing-slash-edge.netlify.app

3

Thanks for the hint, this does solve my issue, but I was hoping for a more “clean” solution.