sveltekit-html-minifier Svelte Themes

Sveltekit Html Minifier

Sveltekit Adapter to Minify the preload HTML page

Sveltekit HTML Minifier

Sveltekit Adapter to Minify the preload HTML page in case using CSR/Preload by html-minifier-terser.

[!WARNING]
This adaptor will only minify from the prerendered HTML output path, If the page is rendering on runtime it will not minify.

For SSR minify @leoj3n had share a solution here https://github.com/ntsd/sveltekit-html-minifier/issues/5

Installation

npm i -D sveltekit-html-minifier

Usage

Add the adapter to your svelte.config.js file. Place your default adapter as the first parameter. This will run after the default adapter has finished rendering.

import adapter from "@sveltejs/adapter-static";
import htmlMinifierAdaptor from "sveltekit-html-minifier";

export default {
  kit: {
    adapter: htmlMinifierAdaptor(adapter()),
  },
};

Make sure that the page you want to minify have export const prerender = true; flag set and the output path is correct for the adaptor, otherwise it will not minify.

Options

You can pass additional options to the adapter. For example

import adapter from "@sveltejs/adapter-static";
import htmlMinifierAdaptor from "sveltekit-html-minifier";

export default {
  kit: {
    adapter: htmlMinifierAdaptor(
      adapter({
        pages: "build",
      }),
      {
        // your build path (same as adapter static pages)
        pages: "build",
        // custom html-minifier-terser options
        // https://github.com/terser/html-minifier-terser#options-quick-reference
        minifierOptions: {},
      }
    ),
  },
};
  • pages (string): Specifies the build path. This should be the same as the adapter static pages.
  • minifierOptions (object): Custom options for html-minifier-terser.

for other adaptor, you probably need to specify the HTML output path:

@sveltejs/adapter-cloudflare

htmlMinifierAdaptor(adapter(), { pages: ".svelte-kit/cloudflare" })

@sveltejs/adapter-vercel

htmlMinifierAdaptor(adapter(), { pages: ".svelte-kit/output/prerendered/pages" })

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