server functions not getting correct headers on initial load

[noah-wardlow]

Which project does this relate to?

Start

Describe the bug

as of 1.95.7, you could call getHeader("host") from a server function and it would give the full domain: eg: subdomain.localhost:3000,

after 1.96, the host the only returns as localhost:3000

oddly, if you router.invalidate() lower in the app, it will return the full headers

Your Example Website or App

n/a

Steps to Reproduce the Bug or Issue

1. call a server function from a subdomain
2. in that server function collect the headers
3. see that the headers have the incorrect host

Expected behavior

As a user I'd expect the correct host headers from where the server is function is called

Screenshots or Videos

No response

Platform

• OS: [e.g. macOS, Windows, Linux]
• Browser: [e.g. Chrome, Safari, Firefox]
• Version: [e.g. 91.1]

mac os
chrome
version 1.97.2

Additional context

No response

[schiller-manuel]

duplicate of #3173