We have recently added this control to our site. It has all mostly worked except for the following error that has popped up a few times.

 

 

I haven't been able to reproduce this error, but it has happened for a few users since we put the control into production.

 

 

I haven't been able to find anything in our code that would cause this error, so thought I would check if this could be related to the uploader control.

 

Any help would be most appreciated.

 

Cheers,

Chris