When redirecting pre-rendered pages, Astro serves a "Redirecting to [url]" placeholder

[paulrudy]

What version of astro are you using?

2.9.6

Are you using an SSR adapter? If so, which one?

Vercel

What package manager are you using?

pnpm

What operating system are you using?

Mac

What browser are you using?

Chrome, Safari

Describe the Bug

This issue was discussed in #7731 (closed), but has not been resolved for Vercel.

With Astro's redirects configured in SSR mode, but with pre-rendered pages, there is a brief flash of "Redirecting to... [url]" before being served the target url of the redirect.

This happens both in hybrid mode, and in server mode (when the pages being served have export const prerender = true; in their frontmatter). It seems not to happen when the source url for the redirect is /.

What's the expected result?

Redirection of pre-rendered pages in server (or hybrid) mode should happen seamlessly.

Link to Minimal Reproducible Example

Live (navigate to /foo)
repo

Participation

• I am willing to submit a pull request for this issue.

[natemoo-re]

Thanks for opening a new issue! Looks like this is another case we missed. We'll take a look at this as soon as we can.

[MKlblangenois]

Hey @natemoo-re! Have you any update about this issue ? :)

[maxnowack]

I got around this with the following addition to my config (using the @astrojs/node adapter):

  // ...
  build: {
    redirects: false,
  },
  // ...

[disrae]

I'm on Astro 4.0.6 and I'm having this issue.

[gregorobreza]

I have similar issue when deploying on github pages. I am using Astro 4.0.8. It works fine locally but in production It flashes for a brief moment.

[ematipico]

It's worth opening a new issue with a new reproduction.

[gregorobreza]

Sure here it is #9662