Merge branch 'seo-frontmatter'

# Conflicts:
#	apply/registration.md

.editorconfig

@@ -12,3 +12,7 @@ trim_trailing_whitespace = true
 
 [*.md]
 trim_trailing_whitespace = false
+
+[.vuepress/config.js]
+indent_style = space
+indent_size = 4

.vuepress/config.js

@@ -41,6 +41,7 @@ module.exports = {
      * ref：https://v1.vuepress.vuejs.org/theme/default-theme-config.html
      */
     themeConfig: {
+        domain: 'https://fabacademy.org',
         lastUpdated: 'Last Updated',
         logo: '/fab-academy2.jpg',
         footerCopy: "© 2021 Fab Academy",
@@ -321,6 +322,15 @@ module.exports = {
      */
     plugins: [
       '@vuepress/back-to-top',
-      ['@vuepress/google-analytics', { ga: 'UA-46064152-5' }]
+      ['@vuepress/google-analytics', { ga: 'UA-46064152-5' }],
+        ['vuepress-plugin-seo', {
+            customMeta: (add, context) => {
+                const { $page, $site } = context
+
+                if (!$page.frontmatter.canonicalUrl) {
+                    $page.frontmatter.canonicalUrl = ($site.themeConfig.domain || "") + $page.path;
+                }
+            }
+        }]
     ]
 }

package.json

@@ -14,7 +14,8 @@
     "@vuepress/theme-default": "^1.7.1",
     "leaflet": "^1.7.1",
     "vue2-leaflet": "^2.6.0",
-    "vuepress": "^1.7.1"
+    "vuepress": "^1.7.1",
+    "vuepress-plugin-seo": "^0.1.4"
   },
   "dependencies": {
     "vue-tweet-embed": "^2.1.2"

yarn.lock

@@ -7734,6 +7734,11 @@ vuepress-plugin-container@^2.0.2:
     "@vuepress/shared-utils" "^1.2.0"
     markdown-it-container "^2.0.0"
 
+vuepress-plugin-seo@^0.1.4:
+  version "0.1.4"
+  resolved "https://registry.yarnpkg.com/vuepress-plugin-seo/-/vuepress-plugin-seo-0.1.4.tgz#be8e5577491c1fc317a7ad4abe3ae51ff317be1e"
+  integrity sha512-foNKrAAKihiC47bx0UXFzs/+BIFmnowTQsLVF/8pfsnsPDp8FXjkTGyjxyjOhbwj7ADPv32CdX3pEoYGnZ7OjA==
+
 vuepress-plugin-smooth-scroll@^0.0.3:
   version "0.0.3"
   resolved "https://registry.yarnpkg.com/vuepress-plugin-smooth-scroll/-/vuepress-plugin-smooth-scroll-0.0.3.tgz#6eff2d4c186cca917cc9f7df2b0af7de7c8c6438"