don't add link if canonicalUrl is present

package-lock.json

@@ -6,7 +6,7 @@
   "packages": {
     "": {
       "name": "tailwind-nextjs-starter-blog",
-      "version": "1.4.3",
+      "version": "1.5.0",
       "dependencies": {
         "@fontsource/inter": "4.5.2",
         "@mailchimp/mailchimp_marketing": "^3.0.58",

scripts/generate-sitemap.js

@@ -1,3 +1,4 @@
+const { data } = require('autoprefixer')
 const fs = require('fs')
 const globby = require('globby')
 const matter = require('gray-matter')
@@ -29,6 +30,9 @@ const siteMetadata = require('../data/siteMetadata')
                   if (fm.data.draft) {
                     return
                   }
+                  if (fm.data.canonicalUrl) {
+                    return
+                  }
                 }
                 const path = page
                   .replace('pages/', '/')