Create Order in backend yields raw HTML code (CE 2.4.3)

[erik_vandermey]

From the Orders screen, clicking on the "Create New Order" button on top right yields a page of raw HTML code as below (domain name removed, only first few lines copied):

<form id="edit_form" data-order-config='{&quot;store_id&quot;:&quot;1&quot;,&quot;currency_symbol&quot;:&quot;$&quot;,&quot;shipping_method_reseted&quot;:true,&quot;payment_method&quot;:null,&quot;quote_id&quot;:&quot;2236&quot;}'
      data-load-base-url="https:/xxxxx.xx/xxxxx/sales/order_create/loadBlock/key/xxxxx67e976127b8a3373b3f08019232d2f4ed6f4a50ff3620858674ae/"
      action="https://xxxxx.xx/xxxxxl/sales/order_create/save/key/xxxxxfc6bfcf712251a628cdf4ec1444e4862189b7d39df91dc7f4188c/" method="post" enctype="multipart/form-data">
    <div><input name="form_key" type="hidden" value="M0xWPWsl09QopqNH" /></div>
    <div id="order-message">
            </div>
    <div id="order-customer-selector" class="fieldset-wrapper order-customer-selector no-display">
        

Same happens when dropping into a previous order and clicking on the "Reorder" option.

[erik_vandermey]

From the Magento system.log

[2022-05-05 17:10:17] main.CRITICAL: TypeError: htmlspecialchars() expects parameter 1 to be string, object given in /var/www/xxxxxx/vendor/magento/framework/Escaper.php:417

[hoadao3493b131]

Your article is very good and useful, thank you for sharing, bk8 hopes that next time you will have more good articles to send to all readers.