Hey everyone, I would just like to mention that in order for Amazon S3
uploading to work you have to have a crossdomain.xml file (which has
public view permissions obviously) in your Amazon S3 bucket, otherwise
flash gives the infamous security sandbox error.
The only problem is that the sandbox error message is a bit hidden, it
took me a couple of hours to find out what was going on. The only way
I could find the error was by clicking the little "uploading files"
rectangle that appears on the screen (top left-hand side of the folder
list in the Files page).
Maybe this would be worth adding to the integration wiki page?
https://github.com/instructure/canvas-lms/wiki/Canvas-Integration
Thanks,
James.