From ad8504b2139f26906fa133d4ae5cc8f877054b04 Mon Sep 17 00:00:00 2001
From: Jordi Boggiano <j.boggiano@seld.be>
Date: Fri, 5 Sep 2025 20:39:45 +0200
Subject: [PATCH 1/2] Fix issue when http headers are already present

---
 src/JsonSchema/Uri/Retrievers/FileGetContents.php | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/JsonSchema/Uri/Retrievers/FileGetContents.php b/src/JsonSchema/Uri/Retrievers/FileGetContents.php
index a4f96593..f6056693 100644
--- a/src/JsonSchema/Uri/Retrievers/FileGetContents.php
+++ b/src/JsonSchema/Uri/Retrievers/FileGetContents.php
@@ -29,6 +29,10 @@ class FileGetContents extends AbstractRetriever
      */
     public function retrieve($uri)
     {
+        if (function_exists('http_clear_last_response_headers')) {
+            http_clear_last_response_headers();
+        }
+
         $errorMessage = null;
         set_error_handler(function ($errno, $errstr) use (&$errorMessage) {
             $errorMessage = $errstr;

From b355945dee934c8c17dcbb98558f7c4fa3136504 Mon Sep 17 00:00:00 2001
From: Danny van der Sluijs <danny.van.der.sluijs@infi.nl>
Date: Tue, 9 Sep 2025 11:34:10 +0200
Subject: [PATCH 2/2] docs: Add changelog entry

---
 CHANGELOG.md | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 674fd0a0..4d6b5989 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,8 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
+### Fixed
+- Fix issue when http headers are already present ([#843](https://github.com/jsonrainbow/json-schema/pull/843))
 
 ## [6.5.1] - 2025-08-29
 ### Changed