SvelteKit Limitations for Scalable Projects #10830
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JaviKeziah
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I've been using SvelteKit for several websites and have encountered some limitations that seem improvable. These limitations might be among the reasons why I'm not aware of any large companies using it in production.
All of these concerns are related to the
app.htmlfile. The inability to control your own head section results in performance issues, reduced control over your application, and difficulty implementing simple things.For example:
There is no control over the order of the
<head>elements, which is important for performance.When attempting to preload an image or add a
preconnectto load images from a CDN, I've observed delays sometimes exceeding 0.5 seconds more than usual.It's not possible to place the Title at the beginning of the head where it is recommended.
For internationalization (i18n), serving static pages without using a library or modifying the hooks seems unfeasible, as changing the
%lang%attribute inhooks.server.tsis necessary.When using client-side routing, it's not a good idea to add a component inside
<svelte:head>because it re-renders every time you navigate to the same page.Controlling the body tag for each specific route is also more difficult, as it is not scoped.
I believe these and other issues could be resolved by allowing the addition of Layouts as components with all the
headelements replacingapp.htmlfile, similar to what is done in Astro or Next. This also would enable us to place%sveltekit.head%and%sveltekit.body%wherever needed for each route, facilitating easy implementation of internationalization without modifyinghooks.server.tsand allowing a choice between static and dynamic routes with zero configuration.Am I the only one thinking this?
I may be mistaken about some of these points, so if anyone knows an efficient way to address these challenges, I would love to hear it.
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