I'm seeing this when running my canvas app on a custom tab (via a visual force page) installed managed package. I've had no issues running it the same way on the same enviroment without it being a managed package as I was developing. Any idea?

 

I'm seeing this when running my canvas app on a custom tab (via a visual force page) installed managed package. I've had no issues running it the same way on the same enviroment without it being a managed package as I was developing. Any idea?