IDN domain names are sometimes displayed as punycode instead of Unicode chars

[alvar-freude]

Steps to reproduce the problem

1. Open an instance with IDN domain name in browser
2. Look at the about page, e.g. https://bawü.social/about
3. See how the hostname is displayed
4. Similarly: Look at the left sidebar

Expected behaviour

Always display IDN host names as Unicode characters

Actual behaviour

Sometimes IDN host names are displayed as punycode

Detailed description

In the above example, the host name (and instance name) should be displayed as "bawü.social", but it is displayed in punycode: "xn--baw-joa.social".

This is confusing for most unexperienced users.

There are several places, where the domain name is displayed as punycode, e.g. in big on the about page, but also at the left sidebar in the footer, as account name on the account page (e.g. https://bawü.social/@lfdi); in some situations the domain name is displayed correctly with unicode chars.

In some places Unicode domains are displayed correctly. With 4.0 the issue is more noticeable because on the "about" page the hostname is displayed large in punycode.

Examples

Specifications

Mastodon 4.0.2

[Der-K-2000]

This bug was already reported (please use the search before starting a new issue) → #20906

There is also a pull request → #21440

[alvar-freude]

Sorry, I used the search function but must have used wrong search words and only found issues to other areas like IDN links in toots etc.

Thanks for pointing it out, so I will close this issue.