HtmlEditorExtender stripes out pre tag

Hello. I have coded my own quoting system since HtmlEditorExtender does not have a quote system. Or does it have?

for quote, i am using pre tag. However, the latest HtmlEditorExtender in version 16.1.0 stripes out the pre tag. It just removes the part that contains pre tag.

I mean like

<pre><pre>CeFurkan: Wrote</pre>dsfsdfs</pre>

This is removed at the client side before posting to the server. How can i allow this tag?

I also tried with span class="myClass" and it removes class tag this time

my settings are

code behind

htmlEditorExtender1.EnableSanitization = true;

front code

<ajaxToolkit:HtmlEditorExtender ID="htmlEditorExtender1" TargetControlID="txtMessageBody"
                    runat="server" DisplaySourceTab="True"><Toolbar><ajaxToolkit:Undo /><ajaxToolkit:Redo /><ajaxToolkit:Bold /><ajaxToolkit:Italic /><ajaxToolkit:Underline /><ajaxToolkit:StrikeThrough /><ajaxToolkit:Subscript /><ajaxToolkit:Superscript /><ajaxToolkit:JustifyLeft /><ajaxToolkit:JustifyCenter /><ajaxToolkit:JustifyRight /><ajaxToolkit:JustifyFull /><ajaxToolkit:InsertOrderedList /><ajaxToolkit:InsertUnorderedList /><ajaxToolkit:CreateLink /><ajaxToolkit:UnLink /><ajaxToolkit:RemoveFormat /><ajaxToolkit:SelectAll /><ajaxToolkit:UnSelect /><ajaxToolkit:Delete /><ajaxToolkit:Cut /><ajaxToolkit:Copy /><ajaxToolkit:Paste /><ajaxToolkit:BackgroundColorSelector /><ajaxToolkit:ForeColorSelector /><ajaxToolkit:FontNameSelector /><ajaxToolkit:FontSizeSelector /><ajaxToolkit:Indent /><ajaxToolkit:Outdent /><ajaxToolkit:InsertHorizontalRule /><ajaxToolkit:HorizontalSeparator /></Toolbar></ajaxToolkit:HtmlEditorExtender>

And web config

<ajaxControlToolkit useStaticResources="true" renderStyleLinks="false" htmlSanitizer="AjaxControlToolkit.HtmlEditor.Sanitizer.DefaultHtmlSanitizer, AjaxControlToolkit.HtmlEditor.Sanitizer" />