From 35eae1adcf259f3815b984e2394bf38647cd6a43 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Greg=20Berg=C3=A9?= <berge.greg@gmail.com>
Date: Tue, 10 Dec 2024 17:47:57 +0100
Subject: [PATCH] Fix canonical in a safe way (#2589)

---
 .../gitbook/src/app/(site)/(content)/[[...pathname]]/page.tsx  | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/packages/gitbook/src/app/(site)/(content)/[[...pathname]]/page.tsx b/packages/gitbook/src/app/(site)/(content)/[[...pathname]]/page.tsx
index 095e9841a..715da8113 100644
--- a/packages/gitbook/src/app/(site)/(content)/[[...pathname]]/page.tsx
+++ b/packages/gitbook/src/app/(site)/(content)/[[...pathname]]/page.tsx
@@ -150,7 +150,8 @@ export async function generateMetadata({
             .join(' | '),
         description: page.description ?? '',
         alternates: {
-            canonical: absoluteHref(getPagePath(pages, page), true),
+            // Trim trailing slashes in canonical URL to match the redirect behavior
+            canonical: absoluteHref(getPagePath(pages, page), true).replace(/\/+$/, ''),
         },
         openGraph: {
             images: [