Mongrel upload progress

Something I check on the status of now and then is the ability to have a nice upload progress bar for uploads via the browser. Sean Treadway's initial example looked great but required special server setup. Support was added to Mongrel recently, but I never got around to properly investigating as there was no documentation of it, which didn't help. A random check of the Mongrel site has just revealed they've finally added some instructions for upload progress on Mongrel. I haven't tried it yet (it's late, must sleep), but at least there's a base to work from now.