Using sitefinity we get a lot of admins getting "Enter happy" and generating obnoxious amounts of <p> tags or empty divs, or something...

I'd love a filter such that when they save it'd go through and clean up (remove) the empty crap content.

<p>some text</p> <-- FINE
<p></p> <-- GONE
<p><br/></p> <-- GONE
<p>Final bit of text</p> <-- FINE
...etc

setSize() is not applying dimensions properly to the content area.

RadEditor is resized correctly but the content area isn't. Once resize RadEditor manually through its resize handle, the content area becomes resized properly.

When hyperlinks are inserted into the content of RadEditor in preview mode there are additional attributes , which are retrieved by the get_html() method. 

If the MaxHtmlLength is set and the content is close to the limit on switching to preview mode breaks the normal behavior of the editor. The validator alerts that the length is exceeded, because of the additional attributes and the client is not able to open any other mode.

RadEditor uses a RadWindow for its dialogs so when the global rendering of RadCocntrols on the page is set to Lightweight the dialogs need to be consistent.
There could be implemented a property to control the RenderMode of the dialogs themselves.

Ability for the RadEditor's validator dialog to validate HTML 5 markup inside it's content

This problem causes the handles of the widget to be rendered at an incorrect position. The resizable widget should dispose or repaint itself, when the image is being dragged around the content. 

Possible workaround is to reselect the element on the dragend event of the editor's content. You can follow this example setup:

 <telerik:RadEditor runat="server" ID="RadEditor1" OnClientLoad="OnClientLoad">
</telerik:RadEditor>

<script type="text/javascript">
	function OnClientLoad(editor, args) {
		editor.attachEventHandler("ondragend", function (e) {
			var selElm = editor.getSelectedElement();
			if (selElm && selElm.tagName && selElm.tagName === "IMG") {
				editor.selectElement(selElm);
			}
		});
	}
</script>

Hi,

when using the StripCssExpressions Content Filter, it's working as expected in most cases, but when there's a linebreak inside of the style it breaks.

<telerik:RadEditor ContentFilters="RemoveScripts,StripCssExpressions,StripDomEventAttributes" />

<span style="width: expression((document.body.offsetWidth / 4 + 30) + 'px'); background-color: green;">text in a span</span>

<span style="width: 
expression((document.body.offsetWidth / 4 + 30) + 'px'); background-color: green;">text in a span</span>

The usage for the content filter is to prevent XSS attacks, and in our solution used besides several other means to avoid malicious code execution.

As expected, the filter not working is a security risk.

Does anyone have a good workaround available? (or is there a timeline on an official bugfix?)

Repro steps: 
- use the editor below and the attached Word document in the archive at the end
- copy the document content in the editor
- clean the word formatting
- select some of the content (e.g., one paragraph)
- click the format stripper dropdown and choose Strip Span Elements
- run get_html(true) in the console

Expected: spans are stripped only from the selected content

Actual: nothing is stripped. Changing to HTML mode and back to Design fixes this, so you should not use that to check the HTML

        <telerik:RadEditor RenderMode="Lightweight" runat="server" ID="RadEditor1">
            <Tools>
                <telerik:EditorToolGroup>
                    <telerik:EditorTool Name="FormatStripper" />
                </telerik:EditorToolGroup>
            </Tools>
        </telerik:RadEditor>


WORKAROUNDS:

For the majority of cases you can set up automatic stripping of span elements when pasting from Word, so your users do not need to do that themselves. Here is an example:

<telerik:RadEditor RenderMode="Lightweight" runat="server" ID="RadEditor1"
    StripFormattingOptions="ConvertWordLists, MSWordNoMargins, Span">
    <Tools>
        <telerik:EditorToolGroup>
            <telerik:EditorTool Name="FormatStripper" />
        </telerik:EditorToolGroup>
    </Tools>
</telerik:RadEditor>

You can read more on how stripping MS Word content works in the following demo, and play around with the various options to see what works best for your case: http://demos.telerik.com/aspnet-ajax/editor/examples/cleaningwordformatting/defaultcs.aspx and in the following documentation article: https://docs.telerik.com/devtools/aspnet-ajax/controls/editor/managing-content/pasting-content/clean-ms-word-formatting

There are also two possible code workarounds so advanced users can retain more control over the HTML without switching to the HTML mode themselves.
The second is likely to be a tad faster with large content, but the first is likely to produce better user experience.

1) this changes the mode to HTML and back to design with each paste so that the stripping tool can work with the selection


<telerik:RadEditor RenderMode="Lightweight" runat="server" ID="RadEditor1"
     OnClientCommandExecuted="OnClientCommandExecuted">
    <Tools>
        <telerik:EditorToolGroup>
            <telerik:EditorTool Name="FormatStripper" />
        </telerik:EditorToolGroup>
    </Tools>
</telerik:RadEditor>
<script>
    function OnClientCommandExecuted(sender, args) {
        if (args.get_commandName() == "Paste") {
            sender.set_mode(2);
            setTimeout(function () {
                sender.set_mode(1);
            }, 50);
        }
    }
</script>

2) this one is a workaround that allows the stripping tool to work without mode change, but it will not operate with the selection but with all the content


<telerik:RadEditor RenderMode="Lightweight" runat="server" ID="RadEditor1"
     OnClientCommandExecuting="OnClientCommandExecuting">
    <Tools>
        <telerik:EditorToolGroup>
            <telerik:EditorTool Name="FormatStripper" />
        </telerik:EditorToolGroup>
    </Tools>
</telerik:RadEditor>
<script>
    function OnClientCommandExecuting(sender, args) {
        if (args.get_commandName() == "StripSpan") {
            sender.set_html(sender.get_html(true));
        }
    }
</script>

If you select the whole table along with some content and click BOLD, all table related tags will get wrapped by a <strong> tag. For instance tfoot, thead and so on will be wrapped with <strong>.

Initial content:

<table style="width: 0px;">
    <colgroup><col /><col /><col /></colgroup>
    <thead>
        <tr>
            <th>test</th>
            <th>test</th>
            <th>test</th>
        </tr>
    </thead>
    <tbody>
        <tr>
            <th>test</th>
            <th>test</th>
            <td>test</td>
        </tr>
        <tr>
            <th>test</th>
            <th>test</th>
            <td>test</td>
        </tr>
    </tbody>
</table>
<br />
test line beneath the table



Modified content:

   
<table style="width: 0px;">
<strong><colgroup><col /><col /><col /></colgroup></strong>
    <thead>
        <tr>
            <th><strong>test</strong></th>
            <th><strong>test</strong></th>
            <th><strong>test</strong></th>
        </tr>
    </thead>
    <tbody>
        <tr>
            <th><strong>test</strong></th>
            <th><strong>test</strong></th>
            <td><strong>test</strong></td>
        </tr>
        <tr>
            <th><strong>test</strong></th>
            <th><strong>test</strong></th>
            <td><strong>test</strong></td>
        </tr>
    </tbody>
</table>
<strong>
<br />
test line beneath the table</strong>



Video reproduction in Chrome: https://www.screencast.com/t/lH3LJLKjmXb 

When adding formatting to texts while selecting whole elements, some elements are not included in `isBlockElement` function such as <col> or <colgroup> in a way those elements get wrapped in formatting tags such as <strong>

How to Reproduce:

   Create a table in editor

```html
  <span>Outside text</span>
  <table>
     <colgroup>
          <col></col>
     </colgroup>
    <tbody>
       <tr>
            <td>Inside text</td>
        </tr>
    </tbody>
  </table>
```

Select the inside text and outsite text in editor and click for applyng BOLD for instance.

colgroup tag gets wrapped in <strong> tags.

Some of html5 tags are missing from the isblockelement check as well such as 'article', 'aside', 'audio', 'canvas', 'details', 'figcaption', 'figure', 'footer', 'header', 'hgroup', 'nav', 'output', 'section', 'video'

On Google Chrome, the following assingment ends up displaying the body of the html twice within the editor:

radEditor.Content="<HTML><HEAD><STYLE>@import url(./CSS/CI.css);</STYLE></HEAD><BODY><H3>OUTPUT LAYOUT</H3><P>First Name:</P><P>Kerry</P></BODY></HTML>"

The resulting html becomes:
"<html><head><link href="/WebResource.axd?d=IgLlf5SIEZ-4m-Qr1qYVOGbMUL9-osMaMQXxs1c-ODIbmiiieGrgJ2ZuegoRNaCpJJ5zKojqJuk_FD7Cb69kb713UUGq1dCMsrFtihWFgnKkbYnlqQv7Lo2rUoUhmXHopZnTw7Cs3STs4GHdRuMnVHVdYHhRrcdV8Dgdv-U213Y1&amp;t=637050242483188892" type="text/css" id="RADEDITORSTYLESHEET0" rel="stylesheet"></head><body><h3>OUTPUT LAYOUT</h3><p>First Name:</p><p>Kerry</p><h3>OUTPUT LAYOUT</h3><p>First Name:</p><p>Kerry</p></body></html>"

The issue is the "@import url(./CSS/CI.css);" within the Style tag, if the @import url, is removed, then it works as expected.

Works as expected on IE11.

radEditor.Content = "<HTML><HEAD></HEAD><BODY><H3>OUTPUT LAYOUT</H3><P>First Name:</P><P>Kerry</P><style>@import url(\"./CSS/CI.css\");</style><style>@import url(\"./CSS/CI2.css\");</style></BODY></HTML>";

1. Extract the attached word file.

2. Open it and copy the table content.

3. Go to https://demos.telerik.com/aspnet-ajax/editor/examples/cleaningwordformatting/defaultcs.aspx and paste it without stripping the Word formatting - everything will be fine.

4. Paste it again with stripping the Word formatting - you will see the problem - there is a ticker border around many of the cells:

If you paste the content without stripping the formatting and after that strip it with the FormatStripper the ticker border will not appear.

 Out of stack space error is thrown by the Find & Replace dialog in IE11/Edge when there is an img tag withing the content. The image will cause the Find feature to sit and spin when searching for a string after the img tag. It does not return a result and it does not trigger a modal to display, e.g., “The search string was not found.”

Changing the background color for the second/subsequent paragraph causes background color for first/previous paragraph to be lost/changed.  This is a browser-specific bug.

Reproduction steps:

    Navigate Internet Explorer/Edge browser to: Telerik RadEditor Demo Page
    Select-all and delete.
    With cursor at the beginning, select a background color from the toolbar.
    Type some text.
    Hit the Enter key to start a second paragraph
    Select the "no-fill" background color from the toolbar.

Results:

-The background color for the first/previous paragraph is removed.

Reproduction steps: 

When part of a table from MS Excel is copied and pasted into RadEditor under Edge, the RadEditor inserts an image instead of the html for the table. It inserts <img alt="" src="data:image/png;base64, ... " /> instead of the html.

Steps to reproduce:

Open http://demos.telerik.com/aspnet-ajax/editor/examples/overview/defaultcs.aspx in MS Edge.On the editor select the html and delete everything.
On the editor select design
Open any Excel file copy a couple of cells
Paste in the Editor
On the editor select html
Instead if html the there is an image tag
<img alt="" src="data:image/png;base64,iVBOR ... YII=" />

With firefox, IE 11 and Chrome the html is pasted. For MS Edge the Image tag is pasted.

Workaround:
<telerik:RadEditor runat="server" ID="RadEditor"></telerik:RadEditor>
<script>   
    Telerik.Web.UI.Editor.Utils.containsHtmlAtClipboard = function(oEvent) {
        var result = oEvent && oEvent.clipboardData && oEvent.clipboardData.getData &&
            oEvent.clipboardData.types && oEvent.clipboardData.types.length &&
            Telerik.Web.UI.Editor.Utils.containsElement(/text\//i, oEvent.clipboardData.types);
 
        return result;
    }
</script>

The empty new lines from RTF are imported as empty paragraphs in the editor and not rendered, i.e.

<p class="TelerikNormal" style="line-height: 16px;"> </p>
<p class="TelerikNormal" style="line-height: 16px;"> </p>
<p class="TelerikNormal" style="line-height: 16px;"> </p>
<p class="TelerikNormal" style="line-height: 16px;"> </p>
<p class="TelerikNormal" style="line-height: 16px;"> </p>


They should be rendered, because in other case this breaks the layout of the inserted document.

The context menu for IMG and Table element immediately hides when shown on Mac Firefox.

Load this demo http://demos.telerik.com/aspnet-ajax/editor/examples/overview/defaultcs.aspx on Firefox Mac OS
and right click in a table cell or image. You'll see how the menu pops up and immediately closes.

Video reproduction -> http://www.screencast.com/t/osHP96eQOa7