feat(v2): add canonical URL to <head> (#2694)

facebook · May 13, 2020 · aac4e27 · aac4e27
1 parent 7d8aeac
commit aac4e27
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diff --git a/packages/docusaurus-theme-classic/src/theme/DocItem/index.js b/packages/docusaurus-theme-classic/src/theme/DocItem/index.js
@@ -100,6 +100,7 @@ function DocItem(props) {
           <meta name="twitter:image:alt" content={`Image for ${title}`} />
         )}
         {permalink && <meta property="og:url" content={siteUrl + permalink} />}
+        {permalink && <link rel="canonical" href={siteUrl + permalink} />}
       </Head>
       <div
         className={classnames(

diff --git a/packages/docusaurus-theme-classic/src/theme/Layout/index.js b/packages/docusaurus-theme-classic/src/theme/Layout/index.js
@@ -75,6 +75,7 @@ function Layout(props) {
           {permalink && (
             <meta property="og:url" content={siteUrl + permalink} />
           )}
+          {permalink && <link rel="canonical" href={siteUrl + permalink} />}
           <meta name="twitter:card" content="summary_large_image" />
         </Head>
         <AnnouncementBar />