A more official way to handle form actions with prerendering? #15158
Description
Describe the problem
See also:
sveltejs/svelte.dev#1728
I think form actions seem like the obvious choice in many use cases where you can't really use them if you want to preserve prerendering, e.g. newsletter pop-up or other pop-ups, single page apps. This seems like it's a limitation that's not going to change (#7586). So in those cases you should probably fall back to a +server.ts endpoint, but that would lose progressive enhancement, or point your form to an action of a different page, and use applyAction() as a workaround. I think it's a bit of a naive developer trap because both options are unexpected extra, often confusing steps.
Describe the proposed solution
I think clarifying this fact in the docs is sufficient, but if you can use an action of a different page to do the same thing and not lose prerendering, why not integrate that into form actions internally or at least in some semi-official way?
Alternatives considered
No response
Importance
would make my life easier
Additional Information
No response