From 00603f61fcb21312df38be1ccfb6b4a97494be43 Mon Sep 17 00:00:00 2001
From: Daniel Rudolf <github.com@daniel-rudolf.de>
Date: Sat, 1 Oct 2016 18:58:04 +0200
Subject: [PATCH] Add integrated 404 Not Found page

Resolves #299
---
 lib/Pico.php | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/lib/Pico.php b/lib/Pico.php
index 10abb8c..034c294 100644
--- a/lib/Pico.php
+++ b/lib/Pico.php
@@ -847,8 +847,14 @@ class Pico
             return $this->loadFileContent($contentDir . '404' . $contentExt);
         }
 
-        $errorFile = $contentDir . '404' . $contentExt;
-        throw new RuntimeException('Required "' . $errorFile . '" not found');
+        // fallback to built-in error message
+        $rawErrorContent = "---\n"
+            . "Title: Error 404\n"
+            . "Robots: noindex,nofollow\n"
+            . "---\n\n"
+            . "# Error 404\n\n"
+            . "Woops. Looks like this page doesn't exist.\n";
+        return $rawErrorContent;
     }
 
     /**