Endless Loading screen is shown over RadPane when the set_showContentDuringLoad(false) method before changing the contentUrl of a RadPane (which is already showing another external page).

I would like the ability to add attributes to the 'RadPane' iframe server side, example problem:

Suppose you have a page with an embedded you-tube video, the full screen option will be disabled as the iframe attribute 'allowfullscreen' is missing, this can be worked around using the following technique: 

http://www.telerik.com/forums/youtube-full-screen

However if the initial page has the youtube video the page needs to be loaded twice as chrome only picks it up on the second page load (as its been set in javascript).

If this is not possible, I would recommend you copy the approach used on radwindow (http://www.telerik.com/forums/youtube-video-in-popup-window-full-screen) e.g. 

    function setIframeAttr(sender, args) {
        var frame = sender.get_contentFrame();
        if (frame) {
            frame.setAttribute("allowfullscreen", "true");
        }
    }

With a client side event "OnClientBeforeShow" (OnClientShow does not work in internet explorer).

This isn't a priority but since there is a hack involved with reloading the page it may be worthwhile making it easier.

Chris

I have splitter tabs that show only images, no text--they are custom built so I get rotated text without worrying about browser compatibility.

I would like to use sprite images for the tabs rather than individual images.

The tabs get hidden when a top oriented SlidingPane is docked inside a horizontal SlidingZone. The issue is reproducible when the resize mode of the parent Splitter is != AdjacentPane.

Steps to reproduce:
1. Run the following code:

        <div style="padding: 200px">
            <telerik:RadSplitter runat="server" ID="RadSplitter2" Orientation="Horizontal" ResizeMode="Proportional">
                <telerik:RadPane runat="Server" ID="radpane11" Height="20px" MaxWidth="980" Scrolling="None" BackColor="Green">
                    <telerik:RadSlidingZone ID="ListMetricsSlidingZone" runat="server" Height="25px" DockedPaneId="ListMetricsPane" SlideDirection="Top">
                        <telerik:RadSlidingPane ID="ListMetricsPane" Title="DEF" runat="server">
                            1111
                        </telerik:RadSlidingPane>
                        <telerik:RadSlidingPane ID="ListHistorySlidingPane1" Title="XYZ" Font-Size="X-Large" runat="server">
                            222
                        </telerik:RadSlidingPane>
                    </telerik:RadSlidingZone>
                </telerik:RadPane>
                <telerik:RadPane runat="Server" ID="radpane33" Scrolling="None">
                </telerik:RadPane>
            </telerik:RadSplitter>
        </div>

2. Undock and dock a sliding pane.

Expected: The tabs remains visible all the time (change the Splitters ResizeMode="AdjacentPane" for reference)