1. Make sure at least one other tab is open.
2. Drag the orange square over the blue square.
3. An alert may appear. Do not dismiss it. If an alert does not appear, PASS, and ignore any further steps.
4. Click the other tab to focus it (or focus it in whatever way works). If you cannot change tabs, PASS, and ignore any further steps.
5. Drag a file that your browser cannot open natively from your computer and drop onto that page, then click the tab for this page to return here. If a download dialog appears at any point after this, cancel it, and return to this page.
6. Dismiss the alert without using the left mouse button (eg. use keyboard, or mouse gestures such as gesture-down,gesture-right).
7. Do a short drag and drop within the pink square. If nothing happens, PASS, and ignore any further steps.
8. The word "PASS" should appear in place of this text.