diff --git a/gatsby-node.js b/gatsby-node.js
index 57abadcc..a3eece56 100644
--- a/gatsby-node.js
+++ b/gatsby-node.js
@@ -124,6 +124,9 @@ exports.createPages = async ({graphql, boundActionCreators}) => {
             process.exit(1);
           }
 
+          // A leading "/" is required for redirects to work,
+          // But multiple leading "/" will break redirects.
+          // For more context see github.com/reactjs/reactjs.org/pull/194
           const toPath = slug.startsWith('/') ? slug : `/${slug}`
 
           redirectToSlugMap[fromPath] = slug;