Merge pull request #205 from magento-gl/AC-7807

AC-7807::Need to fix encoding and decoding issue with same fix which …

Author: sidolov

app/code/Magento/PageBuilder/Model/Filter/Template.php

@@ -170,9 +170,10 @@ function ($errorNumber, $errorString) {
                 throw new DOMException($errorString, $errorNumber);
             }
         );
+        $convmap = [0x80, 0x10FFFF, 0, 0x1FFFFF];
         $string = mb_encode_numericentity(
             $html,
-            ['HTML-ENTITIES','','',''],
+            $convmap,
             'UTF-8'
         );
         try {

app/code/Magento/PageBuilder/Model/Stage/HtmlFilter.php

@@ -46,9 +46,10 @@ public function filterHtml(string $content): string
             //this code is required because of https://bugs.php.net/bug.php?id=60021
             $previous = libxml_use_internal_errors(true);
             $content = '<div>' . $content . '</div>';
+            $convmap = [0x80, 0x10FFFF, 0, 0x1FFFFF];
             $string = mb_encode_numericentity(
                 $content,
-                ['HTML-ENTITIES','','',''],
+                $convmap,
                 'UTF-8'
             );
             $dom->loadHTML($string, LIBXML_HTML_NOIMPLIED | LIBXML_HTML_NODEFDTD);