Description
Can only tab to the "Add Files" button in the pop-up version of uploader on first tab cycle.
Steps to Reproduce:
1) Open the pop-up version of the uploader from the daily build site:
http://build.fluidproject.org/fluid/sample-code/uploader/pop-up/index.html
3) Tap the tab key. Notice that after cycling through all the elements once, you are unable to tab back to the "Add Files" button