In order to support the described situation in your project you need to further implement a custom logic that transforms the img's src's value to base46. 

You can find attached an example which you can follow. 

Uncaught TypeError: Failed to execute 'createObjectURL' on 'URL': Overload resolution failed error is thrown when pasting an image or a chart image from MS Word in RadEditor in Chrome / MS Edge.

The problem can be reproduced in the live demos too: https://demos.telerik.com/aspnet-ajax/editor/examples/overview/defaultcs.aspx. 

The error also prevents the execution of the OnClientPasteHtml event of the control.

Hi Team,

I would like to request the following image file extensions to be displayable using the RadEditor's ImageManager/DocumentManager.  

• abci
• avif
• heif
• heic
• webp

Thank you!

The XHTML validator in the editor control is not working.

As per attached screenshot, when you click it and opens the window it simply states the following.

"Sorry! This document cannot be checked."

"Sorry, this type of URL scheme (undefined) is not supported by this service. Please check that you entered the URL correctly"

Can someone tell me why this is happening? It's also broken on the editor demos on your site. Maybe something on the W3C validator has changed making it no longer compatible/viable?

https://demos.telerik.com/aspnet-ajax/editor/examples/overview/defaultcs.aspx

https://demos.telerik.com/aspnet-ajax/editor/examples/built-in-dialogs/defaultcs.aspx 

The editor does not work at all in Chrome for iOS.

You can reproduce it in this demo:

https://demos.telerik.com/aspnet-ajax/editor/examples/overview/defaultcs.aspx

Using the latest 2022.3.1109.45, our web application is catching "Invalid Resource Request" exceptions when the Windows7 or Vista (maybe others too) loads the "Editor" control in "Classic" mode.    By decoding the URL, the control is having problems locating the image below

WebResource.axd?d=ZHkUja8e5EF7zNoz8IiY_kAGH7MBQgCnq0BEYT2AtFLv57GDfGbEymwRG8H68WuiE_6l2fpZpqb_FzVc_OItknX-LMTzvQOwC0Mk8HaCtGvNzWl-5nNlZ6xpbOjNSk4A0QtPGtyV0UA-BWX4bOfPU8EI30eAVg8UO6p7yERiuEbCUoiZOGUevYGPdrNVvPel0&t=638034624000000000
Error Message: This is an invalid webresource request.

Telerik.Web.UI.Skins|Telerik.Web.UI.Skins.Vista.Editor.ToolbarVerticalSprites.gif

Telerik.Web.UI.Skins|Telerik.Web.UI.Skins.Windows7.Editor.ToolbarSprites.gif

Change the skin of the radeditor in the default.aspx to another skin such as "metro" and the problem will not happen.    It works OK at least on Black, Metro and Silk but haven't tested others, you can tell it doesn't work when the divider bars in the editor toolbar don't appear properly.

http://demos.telerik.com/aspnet-ajax/editor/examples/overview/defaultcs.aspx
Clear content;
Add a table;
Open context menu by selecting a cell in the table;
Open Cell Properties;
Open More cell Styling;
Chose Background color;
Change it and click OK
Click OK in Table Wizard.
Actual: No background color is applied. 

Please follow these steps to reproduce the issue:

1. Open RadEditor Demo: https://demos.telerik.com/aspnet-ajax/editor/examples/overview/defaultcs.aspx
2. Choose a word that is present in the text (e.g. "Barcelona").
3. Open "Find And Replace" dialog.
4. Click on the "Replace" tab.
5. Write "Barcelona" or any other chosen word in the "Find" field.
6. Write something in the "Replace With" field (e.g. "Replacement").
7. Select the "Up" Direction in "Search Options".
8. Click "Replace All".

Actual Result: The "The search string was not found." message is displayed and the substrings ("Barcelona") are not replaced.
Expected Result: All occurrences of the substring are replaced.

Note that this functionality seems to be working if the "Down" direction is chosen.
Update: I would like to add that the issue is not only with Replace All. The same bug is happening with "Replace" with both "Up" and Down" directions.

The execution of the getContextMenuByTagName inside the oncontextmenu event of RadEditor hides the context menu once it is shown. This happens in Lightweight render mode only and when the UseRadContextMenu is enabled:

<telerik:RadEditor ID="RadEditor1" runat="server" ContentAreaMode="iframe" OnClientLoad="OnClientLoad">
    <Content>
        <table>
            <tr>
                <td>test</td>
            </tr>
                <tr>
                <td>test</td>
            </tr>
                <tr>
                <td>test</td>
            </tr>
        </table>
    </Content>
</telerik:RadEditor>
<script>
    function OnClientLoad(editor, args) {
        editor.attachEventHandler("oncontextmenu", function (e) {
            var oSelection = editor.getSelectedElement();

            setTimeout(function () {
                var tdMenu = editor.getContextMenuByTagName("TD"); //the call of getContextMenuByTagName closes the context menu when lightweight render mode is used. You can slow down the closing with the setTimeout function or by settign UseRadContextMenu to false.

            }, 1000);
        });

    }
</script>

"The size of the uploaded file exceeds max size allowed" is thrown even if the file is under the specified maximum upload file size.

The error is reproducible in the Default demo -> http://demos.telerik.com/aspnet-ajax/editor/examples/overview/defaultcs.aspx.

Open the Document manager and upload some unsupported file which size does not exceed 200 kb. For example upload a small image file. You'll get the following error:

The size of the uploaded file exceeds max size allowed.
The extension of the uploaded file is not valid. Please, provide a valid file!

while only this line should be shown: The extension of the uploaded file is not valid. Please, provide a valid file!

Pressing ENTER over a list item not only creates a new li, but also inserts additional <br> element.

Video: https://www.screencast.com/t/PZcYTKEtY4v

Steps to reproduce:
1. Open in Chrome:
2. Switch to Html mode and insert the following content:
<ol>
    <li>123 456
    <ol>
        <li>abc</li>
    </ol>
    </li>
    <li>789</li>
</ol>

3. Switch to design mode
4. Put the cursor inside the first li (e.g. before 5) and press ENTER

Result: A <br> element is added in the beginning of the new <li> element

It should rather select the last cell of the table. 

When using Table Wizard to insert a new table inside a table cell, the selected table is replaced by the one created from Table Wizard. 

Currently, the workaround is to use the plain InsertTable tool in order to nest tables. 

FileBrowser pager slider tooltips: "Increase", "Decrease"

FileBrowser grid column resize: "Drag to resize" 

When creating or updating old areas, the target value always shows either Target or the lastly selected one. It does not update its state.