docsify/middleware.js at develop · docsifyjs/docsify · GitHub

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// Exports

// =============================================================================

export const config = {

matcher: ['/preview/(index.html)?'],

};

// Rewrite rules shared with local server configurations

export const rewriteRules = [

// Replace CDN URLs with local paths

{

match: /https?.*\/CHANGELOG.md/g,

replace: '/CHANGELOG.md',

{

// CDN versioned default

// Ex1: //cdn.com/package-name

// Ex2: http://cdn.com/package-name@1.0.0

// Ex3: https://cdn.com/package-name@latest

match: /(?:https?:)*\/\/.*cdn.*docsify[@\d.latest]*(?=["'])/g,

replace: '/dist/docsify.min.js',

{

// CDN paths to local paths

// Ex1: //cdn.com/package-name/path/file.js => /path/file.js

// Ex2: http://cdn.com/package-name@1.0.0/dist/file.js => /dist/file.js

// Ex3: https://cdn.com/package-name@latest/dist/file.js => /dist/file.js

match: /(?:https?:)*\/\/.*cdn.*docsify[@\d.latest]*\/(?:dist\/)/g,

replace: '/dist/',

];

// Serve virtual /preview/index.html

// Note: See vercel.json for preview routing configuration

// 1. Fetch index.html from /docs/ directory

// 2. Replace CDN URLs with local paths (see rewriteRules)

// 3. Return preview HTML

export default async function middleware(request) {

const { origin } = new URL(request.url);

const indexURL = `${origin}/docs/index.html`;

const indexHTML = await fetch(indexURL).then(res => res.text());

const previewHTML = rewriteRules.reduce(

(html, rule) => html.replace(rule.match, rule.replace),

indexHTML,

);

return new Response(previewHTML, {

status: 200,

headers: {

'content-type': 'text/html',

'x-robots-tag': 'noindex',

});

}

docsify/middleware.js at develop · docsifyjs/docsify · GitHub

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