The different browsers offer different level of support for non editable elements / areas and it is hard to implement a 100% reliable working cross browser solution for editable iframe/div elements such as the content area of RadEditor.
I performed a test in IE9 and Firefox 14.0.1 but I was unable to reproduce the stripping problem as shown in the following video: http://screencast.com/t/7vcWhfj3W2
. What you can try is to disable the built-in filters of RadEditor by setting ContentFilters="None"
, which will ensure that the content is not stripped by RadEditor.
the Telerik team
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