We are having some problems with the Opera 11 and AutoResize of the RadWindow.
We are setting an url to the window. If the content of the window is small (less than 350px) our RadWindow still becomes 350px high (with white space below).
When checking out the autosize source code in Telerik, I discovered the following lines of code:
if ($telerik.isIE || $telerik.isFirefox)
sizingElement = contentFrame;
When I did a prototype on the entire autoSize function and including Opera in the if statement, everything worked as expected!!!
Don't know if there are side-effect of this, but normally Opera behaves like these browsers so it should be OK.
Is this something you might fix in a future release?