Warning messages when creating a new project with empty template on 4.16.1

[ayberktandogan]

Astro Info

Astro                    v4.16.1
Node                     v20.17.0
System                   macOS (arm64)
Package Manager          npm
Output                   static
Adapter                  none
Integrations             none

If this issue only occurs in one browser, which browser is a problem?

No response

Describe the Bug

When creating a new project with default options except the template selected empty, I get the error:

[WARN] `Astro.request.headers` is unavailable in "static" output mode, and in prerendered pages within "hybrid" and "server" output modes. If you need access to request headers, make sure that `output` is configured as either `"server"` or `output: "hybrid"` in your config file, and that the page accessing the headers is rendered on-demand.

I haven't added, changed or removed anything. It just prints this on every refresh.

You can also see the same behaviour on the stackblitz example as well.

What's the expected result?

It should give me no errors because I'm not trying to access "Astro.request.headers" anywhere in the code.

This does not happen on 4.16.0

Link to Minimal Reproducible Example

https://stackblitz.com/github/withastro/astro/tree/latest/examples/minimal

Participation

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

[matthewmercuri]

I can corroborate this as well. Just tried a fresh install and also on my newly updated existing Astro repo.

[CaptainSwag101]

I am getting this problem after upgrading my site (created using the built-in blog template in 4.15.1) to 4.16.1 as well. I can't seem to find anywhere in my own code where Astro.request.headers is used, and the error message doesn't give me any useful information as to where or how I might correct this issue without changing to "server" or "hybrid" mode.

[xabru]

I encountered the same warning again in the latest update "4.16.1" I had to downgrade to "4.16.0" to make the warning disappear in a project created from scratch using bun create astro.