@youneed/ssr-plugin-canonical

<link rel="canonical"> + hreflang alternates as SSR page middleware for @youneed/ssr.

By default every page gets a canonical link derived from the SSR origin + the request path. Override or opt out per page via the canonical option (added to PageOptions); declare hreflang variants via alternates.

import { ssr } from "@youneed/server-plugin-ssr";
import { canonical } from "@youneed/ssr-plugin-canonical";

class Pricing extends Page("/pricing", {
  canonical: "/pricing",                 // string | false | (ctx) => string
  alternates: [{ hreflang: "de", href: "/de/preise" }],
}) { /* … */ }

app.plugin(ssr({
  origin: "https://example.com",
  pages: [Pricing],
  modules: [canonical({ trailingSlash: "strip" })],
}));

Set auto: false to only emit canonical for pages that declare one.

Build

pnpm --filter @youneed/ssr-plugin-canonical run build