From 4d5089b7636a1013812a932c7169c81ac14f8561 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Mihael=20Muti=C4=87?=
 <35368241+PH4NTOMiki@users.noreply.github.com>
Date: Tue, 8 Feb 2022 17:56:00 +0100
Subject: [PATCH] Fix shadow endpoint when ending with slash (#3740)

---
 .changeset/mighty-cycles-double.md          |  5 +++++
 packages/kit/src/runtime/client/renderer.js | 11 +++++++----
 2 files changed, 12 insertions(+), 4 deletions(-)
 create mode 100644 .changeset/mighty-cycles-double.md

diff --git a/.changeset/mighty-cycles-double.md b/.changeset/mighty-cycles-double.md
new file mode 100644
index 000000000000..ef15b25b4305
--- /dev/null
+++ b/.changeset/mighty-cycles-double.md
@@ -0,0 +1,5 @@
+---
+'@sveltejs/kit': patch
+---
+
+fixes an error with fetching shadow endpoints if they are ending with '/'
diff --git a/packages/kit/src/runtime/client/renderer.js b/packages/kit/src/runtime/client/renderer.js
index 024fcc1451bb..c85fa5e23dd8 100644
--- a/packages/kit/src/runtime/client/renderer.js
+++ b/packages/kit/src/runtime/client/renderer.js
@@ -753,11 +753,14 @@ export class Renderer {
 					let props = {};
 
 					if (has_shadow && i === a.length - 1) {
-						const res = await fetch(`${url.pathname}/__data.json`, {
-							headers: {
-								'x-sveltekit-noredirect': 'true'
+						const res = await fetch(
+							`${url.pathname}${url.pathname.endsWith('/') ? '' : '/'}__data.json`,
+							{
+								headers: {
+									'x-sveltekit-noredirect': 'true'
+								}
 							}
-						});
+						);
 
 						if (res.ok) {
 							const redirect = res.headers.get('x-sveltekit-location');