MouseWheel does not work when setting an HtmlSource.

The control is misplaced when you zoom in/out the browser window.

To work this around you can manually calculate and set the top and left positions of the HTML presenter. 

this.htmlPlaceholder.Loaded += (sender, args) => { this.htmlPlaceholder.LayoutUpdated += htmlPlaceholder_LayoutUpdated; };

private void htmlPlaceholder_LayoutUpdated(object sender, EventArgs e)
{
    this.Dispatcher.BeginInvoke(delegate
    {
        double controlTop = GetTop();
        double controlLeft = GetLeft();
 
        htmlPlaceholder.HtmlPresenter.SetStyleAttribute("top", controlTop + "px");
        htmlPlaceholder.HtmlPresenter.SetStyleAttribute("left", controlLeft + "px");
    });           
}

The HtmlPlaceholde does not respect the applied Scale Transformations.

Currently, RadHtmlPlaceholder is an IFrame which is being rendered on top of the Silverlight plugin. Therefore, no mouse or keyboard events are being fired.

Make it easier to use the HtmlPlaceholder w/ scripts. Much like the WebBrowser control API.

DECLINED: Duplicate with http://feedback.telerik.com/Project/143/Feedback/Details/114177-htmlplaceholder-support-for-webbrowserbrush

When placed in a horizontal PanelBar, the HtmlPlaceholder is not rendered.

When displayed inside a RadWindow, if the window is moved outside the browser, the placeholder gets cut off.
This issue also appears if initally the left side of RadWindow is positioned outside the browser.

The RadHtmlPlaceholder control gets misplaced when displayed inside a RadWindow in a zoomed browser. The issue can be reproduced in the HtmlPlaceholder WindowIntegration demo example.

The control doesn't work in Safari

Does not display properly when placed in StackPanel.

RadHtmlPlaceholder does not respect the EnableAutoZoom property.

"Value does not fall withing the expected range" exception is thrown when displayed in a tooltip in a RadMap

SetProperty fails on HtmlPresenter.

When PDF is shown, setting visibility to collapsed makes the web page blank

When the HtmlPlaceholder is placed in an ItemTemplate of a ListBox and if the HtmlPlaceholder.KeepContentInMemory is set to True, the control is rendered twice - in the ListBoxItems and in the top left of the page

Incorrect rendering under Mac and Safari

OnUnload/OnBeforeUnload do not fire after changing SourceUrl

This only happens in IE8.  IE9, Chrome, FF3 and FF4 all work okay.  As soon as the componenet is set to visible the scrollbar appears because something has been added to the body html.  The suggested workaround to have the body style overflow set to hidden