From c45e6c6bef2c8a6bb4925561f45eac990b04c1ac Mon Sep 17 00:00:00 2001
From: Max Pozdeev <maxpozdeev@gmail.com>
Date: Fri, 15 Apr 2022 20:03:15 +0300
Subject: [PATCH] - fix possible error if failed to create json object with
 init options

---
 src/index.php | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/index.php b/src/index.php
index ffa18b6..e685122 100644
--- a/src/index.php
+++ b/src/index.php
@@ -82,5 +82,12 @@ function js_options()
         "autotag" => Config::get('autotag') ? true : false,
         "markdown" => Config::get('markup') == 'v1' ? false : true
     );
-    echo json_encode($a, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES);
+    $json = json_encode($a, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES | JSON_INVALID_UTF8_SUBSTITUTE);
+    if ($json === false) {
+        error_log("MTT Error: Failed to encode array of options to JSON. Code: ". (int)json_last_error());
+        echo "{}";
+    }
+    else {
+        echo $json;
+    }
 }