Hi Tim schmidt,
It actually fires only once, when the Frame/iFrame object fires the onload event (JavaScript). After that we can't have control or something, because the html is in the frame, which is invisible to the Dom, due to cross-domain issues.
There isn't frame navigated event or something similar that can be used in your case.
If we can be of further help, please let us know.
Greetings,
Miro Miroslavov
the Telerik team
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