From ad3e4cd60b5e791f1c3dac618e9188f64f126a83 Mon Sep 17 00:00:00 2001
From: Sean Fisher <srtfisher@gmail.com>
Date: Tue, 17 Dec 2024 12:36:14 -0500
Subject: [PATCH] Prevent caching and exit with 1 when a plugin is missing

---
 CHANGELOG.md                   |  5 +++++
 src/class-wp-plugin-loader.php | 10 ++++++++--
 2 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index c1ae69f..974ca1f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,11 @@
 
 All notable changes to `WP Plugin Loader` will be documented in this file.
 
+## 0.1.6 - 2024-12-17
+
+- When a plugin is not found, exit with a status code of 1 and send a `500`
+  status code header. This will prevent a fatal error from being cached
+
 ## 0.1.5 - 2024-09-25
 
 - Ensure that the default cache key is unique to each installation. Previously
diff --git a/src/class-wp-plugin-loader.php b/src/class-wp-plugin-loader.php
index a5606db..47ba3a4 100644
--- a/src/class-wp-plugin-loader.php
+++ b/src/class-wp-plugin-loader.php
@@ -222,8 +222,14 @@ protected function handle_missing_plugin( string $plugin ): void {
 			newrelic_notice_error( $error_message );
 		}
 
-		// Bye bye!
-		die( esc_html( $error_message ) );
+		// Send a 500 status code and no-cache headers to prevent caching of the error message.
+		if ( ! headers_sent() ) {
+			status_header( 500 );
+			nocache_headers();
+		}
+
+		echo esc_html( $error_message );
+		exit( 1 );
 	}
 
 	/**