[Forrest]

For the most part, it should work with the same sites Safari does. So if it's not, it does help if you use the Feedback option in OW and send in specific sites that don't work in OW, but do work in Safari.

Going a step further, you can download WebKit (see link in my sig) and test sites with that. If they don't work in WebKit then let the OG know that, but realize it means it's a WebKit bug. If they do work in WebKit, let the OG know that too, as then it's an OW bug.

There have been some known issues with uploading attachments, though those should be mostly (all?) fixed now.