From 5a9477a4025f4fb22608fd4945e71d45f7314d82 Mon Sep 17 00:00:00 2001
From: Matias Griese <matias@trilbymedia.com>
Date: Tue, 9 Feb 2021 21:23:23 +0200
Subject: [PATCH] Only redirect GET/HEAD if
 `system.pages.redirect_trailing_slash` is true and request has a trailing
 slash

---
 CHANGELOG.md                                              | 1 +
 system/src/Grav/Common/Processors/InitializeProcessor.php | 5 +++++
 2 files changed, 6 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 17120547d..c46c090fc 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -22,6 +22,7 @@
     * Fixed renaming flex objects key when using file storage
     * Fixed wrong values in Admin pages list [#3214](https://github.com/getgrav/grav/issues/3214)
     * Fixed pipelined asset using different hash when extra asset is added to before/after position [#2781](https://github.com/getgrav/grav/issues/2781)
+    * Only redirect GET/HEAD if `system.pages.redirect_trailing_slash` is true and request has a trailing slash
 
 # v1.7.5
 ## 02/01/2021
diff --git a/system/src/Grav/Common/Processors/InitializeProcessor.php b/system/src/Grav/Common/Processors/InitializeProcessor.php
index efdde5c8d..924dc29ca 100644
--- a/system/src/Grav/Common/Processors/InitializeProcessor.php
+++ b/system/src/Grav/Common/Processors/InitializeProcessor.php
@@ -30,6 +30,7 @@ use Psr\Http\Message\ResponseInterface;
 use Psr\Http\Message\ServerRequestInterface;
 use Psr\Http\Server\RequestHandlerInterface;
 use function defined;
+use function in_array;
 
 /**
  * Class InitializeProcessor
@@ -414,6 +415,10 @@ class InitializeProcessor extends ProcessorBase
 
     protected function handleRedirectRequest(RequestInterface $request): ?ResponseInterface
     {
+        if (!in_array($request->getMethod(), ['GET', 'HEAD'])) {
+            return null;
+        }
+
         // Redirect pages with trailing slash if configured to do so.
         $uri = $request->getUri();
         $path = $uri->getPath() ?: '/';