fix not removed protection in attributes

Application/Core/TinyMCE/Configuration.php

@@ -32,6 +32,7 @@ use O3\TinyMCE\Application\Core\TinyMCE\Options\EntityEncoding;
 use O3\TinyMCE\Application\Core\TinyMCE\Options\ExternalPlugins;
 use O3\TinyMCE\Application\Core\TinyMCE\Options\FilemanagerUrl;
 use O3\TinyMCE\Application\Core\TinyMCE\Options\ImageAdvtab;
+use O3\TinyMCE\Application\Core\TinyMCE\Options\InitInstanceCallback;
 use O3\TinyMCE\Application\Core\TinyMCE\Options\Language;
 use O3\TinyMCE\Application\Core\TinyMCE\Options\MaxHeight;
 use O3\TinyMCE\Application\Core\TinyMCE\Options\MaxWidth;
@@ -112,6 +113,7 @@ class Configuration
         $this->addOption(oxNew(BaseUrl::class, $this->loader));
         $this->addOption(oxNew(CacheSuffix::class, $this->loader));
         $this->addOption(oxNew(Selector::class, $this->loader));
+        $this->addOption(oxNew(InitInstanceCallback::class, $this->loader));
     }
 
     protected function addGuiOptions(): void

Application/Core/TinyMCE/Options/InitInstanceCallback.php

@@ -0,0 +1,57 @@
+<?php
+
+/**
+ * This file is part of O3-Shop TinyMCE editor module.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ * You should have received a copy of the GNU General Public License
+ * along with O3-Shop.  If not, see <http://www.gnu.org/licenses/>
+ *
+ * @copyright  Copyright (c) 2022 Marat Bedoev, bestlife AG
+ * @copyright  Copyright (c) 2023 O3-Shop (https://www.o3-shop.com)
+ * @license    https://www.gnu.org/licenses/gpl-3.0  GNU General Public License 3 (GPLv3)
+ */
+
+declare(strict_types=1);
+
+namespace O3\TinyMCE\Application\Core\TinyMCE\Options;
+
+use O3\TinyMCE\Application\Core\TinyMCE\PluginList;
+use O3\TinyMCE\Application\Core\TinyMCE\Plugins\PluginInterface;
+use O3\TinyMCE\Application\Core\TinyMCE\Utils;
+
+class InitInstanceCallback extends AbstractOption
+{
+    protected string $key = 'init_instance_callback';
+
+    public function get(): string
+    {
+        // https://github.com/tinymce/tinymce/issues/2271
+
+        $js = <<<JS
+            function (editor) {
+                editor.on('PostProcess', function (e) {
+                    e.content = e.content.replace(
+                        /(&lt;!--mce:protected\s)(.*?)(--&gt;)/gm, 
+                        function(text, p1, p2, p3){
+                            if (unescape) {
+                                return unescape(p2);
+                            } else {
+                                return decodeURIComponent(p2);
+                            }
+                        }
+                    );
+                });
+            }
+        JS;
+
+        return (oxNew(Utils::class))->minifyJS($js);
+    }
+}

Application/Core/TinyMCE/Options/Setup.php

@@ -23,6 +23,8 @@ declare(strict_types=1);
 
 namespace O3\TinyMCE\Application\Core\TinyMCE\Options;
 
+use O3\TinyMCE\Application\Core\TinyMCE\Utils;
+
 class Setup extends AbstractOption
 {
     protected string $key = 'setup';
@@ -34,7 +36,8 @@ class Setup extends AbstractOption
                 editor.options.register("filemanager_url", { processor: "string" });
             }
         JS;
-        return trim((string) preg_replace('!\s+!', ' ', $js));
+
+        return (oxNew(Utils::class))->minifyJS($js);
     }
 
     /**

Application/Core/TinyMCE/Utils.php

@@ -29,4 +29,9 @@ class Utils
     {
         return '"'.addslashes($string).'"';
     }
+
+    public function minifyJS(string $js): string
+    {
+        return trim((string) preg_replace('!\s+!', ' ', $js));
+    }
 }