From d989132b79e1799341bf498151eeeb1e5d4945c3 Mon Sep 17 00:00:00 2001
From: skirtle <65301168+skirtles-code@users.noreply.github.com>
Date: Wed, 17 Jan 2024 15:32:52 +0000
Subject: [PATCH] Add canonical URLs for SEO

---
 docs/.vitepress/config.mjs | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/docs/.vitepress/config.mjs b/docs/.vitepress/config.mjs
index b510acb..505769f 100644
--- a/docs/.vitepress/config.mjs
+++ b/docs/.vitepress/config.mjs
@@ -9,6 +9,16 @@ export default defineConfigWithTheme({
   description: 'Examples of Vue patterns and basic components',
   appearance: false,
 
+  transformHead({ page, siteData: { base } }) {
+    if (page !== '404.md') {
+      const canonicalUrl = `https://skirtles-code.github.io${base}${page}`
+        .replace(/index\.md$/, '')
+        .replace(/\.md$/, '')
+
+      return [['link', { rel: 'canonical', href: canonicalUrl }]]
+    }
+  },
+
   themeConfig: {
     search: {
       provider: 'local'