Update cloudflare.mdx

[tobynguyen27]

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According to this docs

Cloudflare Workers doesn't serve 404.html by default. For static websites, we need to add "not_found_handling": "404-page" to wrangler.json to tell Workers serve them

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[sarah11918]

Hi! I checked the docs at that link, and that appears to show this property as optional, and that it is for configuring a custom 404 page and overriding the defaults. I'm not sure we should include that here because it assumes that you have made a custom 404 page, and not everyone will have one.

This guide was recently submitted by someone at Cloudflare themselves, so they probably feel this is the best general advice. In Astro docs, we avoid documenting too much about how third party services work, but we do want to be helpful!

I will ask for some other team opinions about adding this. If this is something that most people would do, then it can be reasonable to show it. But, this might be something that it is better if they read Cloudflare's own docs if they want this feature, so that they understand how to do it and use it.

[alexanderniebuhr]

Thanks for the suggestion. This options should only be used when two requirements are met:

a) you are not using the Cloudflare adapter and have a 100% static page
b) you have at least a custom 404 page in ˋsrc/pagesˋ (not sure if Astro’s default one counts)

Since the deployment guide describes both approaches - using the adapter or non adapter - I think if we make sure this is added only to the correct tabs, we should recommend it.

[yanthomasdev]

LGTM! Welcome to Team Docs @tobynguyen27 🙌