Change html lang with adapter-static

[YeungKC]

Describe the problem

I have make a Blog using Svelte kit, it is data driven through Github discussions.

Case all data is via environment or Github discussion, you can set a default lang with env or config, and specific post set lang with post frontmatter.

I found a solution, but it is not compatible with adapter-static.
#3091 (comment)

Describe the proposed solution

Maybe provid like <svelte:head> a <svelte:html>?

Alternatives considered

No response

Importance

would make my life easier

Additional Information

No response

[Rich-Harris]

I don't understand, is the language known at prerender time? If so, #3091 (comment) will indeed work. If not, and the content is being injected with JavaScript (not recommended!) then you can set the lang attribute at the same time:

document.documentElement.lang = lang

[YeungKC]

I don't understand, is the language known at prerender time? If so, #3091 (comment) will indeed work. If not, and the content is being injected with JavaScript (not recommended!) then you can set the lang attribute at the same time:

document.documentElement.lang = lang

I think I know why, because I miswrite hooks into hooks…