Remove duplicate null check and add link to docs

gatsbyjs · Apr 4, 2019 · 06fb672 · 06fb672
1 parent f261e62
commit 06fb672
Showing 1 changed file with 7 additions and 7 deletions.
diff --git a/packages/gatsby-plugin-sitemap/src/internals.js b/packages/gatsby-plugin-sitemap/src/internals.js
@@ -30,16 +30,16 @@ export const runQuery = (handler, query, excludes, pathPrefix) =>
     })
 
     if (!r.data.site.siteMetadata.siteUrl) {
-      throw new Error(`SiteMetaData 'siteUrl' property is required`)
-    }
-
-    if (r.data.site.siteMetadata.siteUrl) {
-      // remove trailing slash of siteUrl
-      r.data.site.siteMetadata.siteUrl = withoutTrailingSlash(
-        r.data.site.siteMetadata.siteUrl
+      throw new Error(
+        `SiteMetaData 'siteUrl' property is required. (https://www.gatsbyjs.org/packages/gatsby-plugin-sitemap/#how-to-use)`
       )
     }
 
+    // remove trailing slash of siteUrl
+    r.data.site.siteMetadata.siteUrl = withoutTrailingSlash(
+      r.data.site.siteMetadata.siteUrl
+    )
+
     return r.data
   })