I have a question though.. you mention the use of rel canonical to solve the lesser second half of the problem.. What is that second problem? Shouldn't just the redirects be enough?
Btw, I have grown to prefer netlify.toml over the _redirects, etc. cookie files; esp. for CSP rules.
@kaushalmodi good question—I didn't get into these details in the post, and maybe I should have.
The `canonical` url would be helpful any time that a site might end up with duplicate generated pages. I encountered that with Netlify's deploy previews (which it can be set to generate for pull requests or with draft builds). I think it might also be an issue with past Netlify builds, but I'm not sure.
> I encountered that with Netlify's deploy previews (which it can be set to generate for pull requests or with draft builds)
Hmm, OK. So far, I haven't encountered duplicate pages. Netlify has an inbuilt env var $DEPLOY_PRIME_URL (e.g. it would be https://BR--SITE.netlify.com for a BR branch) [and similar for deploy previews]. I use that as BaseURL in #gohugo. So the page URLs are branches vs deploy previews vs production build are unique..
That said, I'll watch out for issues with just 301's.
> Just that it keeps everything in one file?
That too, plus
> Or is there another advantage I don't know about?
The triple-quoted multi-line strings! With those, the CSP can be broken over multiple lines like this. And without that, that whole CSP block would need to be written in a single line in _headers.
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