I have a problem with the public folder

I have the following
strapi v4.9.0
npm v8.19.1
node v16.14.0

I use svelte in the interface and compile, I copy the files to the public folder as I did in version 4.6.0 and in version 4.8 and 4.9, I have the same problem, the welcome strapi appears.
I made an index.html file to test and in the current two versions it has no solution, I searched the documentation, I didn’t see any configuration. Is anyone in the same situation or solved it?

I use the url http://localhost:1337/index.html I get the page
Sin título
but http://localhost:1337 I get the page