Can hooks.client.ts have Handle HandleFetch hooks?

[xmlking]

I cannot find any reference in the documentation if hooks.client.ts can have Handle and HandleFetch handlers.
when I added, they are not getting called. only HandleClientError hook works in hooks.client.ts
if that is the case, please clarify in the document. there are may devs using then on github
https://github.com/search?q=sveltejs+filename%3A%22hooks.client.ts%22&type=code

If those hooks are not supported in hooks.client.ts, what is recommended approach to add Authorization: Bearer <token> header for all outgoing fetch calls (to a specific domain) in +page.ts or any other client-side fetch code ?

[teemingc]

HandleFetch only works in hooks.server. https://kit.svelte.dev/docs/hooks#server-hooks-handlefetch

You could create a function to help pass the token into the fetch method options