Hello everyone,

We developed a ASP.Net Page using Upload Async component and we are deploying the application but we have an issue, On Windows 7 with IE9 without Silverlight the Upload Async Component is blocked or does not work on the iFrame fallback.

Do we need to add a P3P header to the loading method of the Page or overriding the Process Method or there is a way to handle this issue so the IE 9 does not block the iFrame fallback?.

Also could be the PCs have flash installed so the Upload Async component gets for granted that it will use Flash but on IE 9 The component does not work the flash fallback. My understanding is that if there is not silverlight, on IE 9 it will fallback to iFrame or do I need explicitly to disable Flash support?.

Best Regards,
Skandar.

Hi Skandar,

P3P headers are not tested, but they might be working. You could try to generate P3P Privacy Policies xml file, which should be the same. This article provides more details how to deploy it.

Regards,
Hristo Valyavicharski
the Telerik team