To ensure that your test is successful, make sure that you're using the latest version of Participate. Chrome automatically updates all extensions, but this can take a while depending on when Chrome checks for new versions and if your web browser is active.
If you are can't wait, you can manually force the update:
1. Go to Menu > Settings > Extensions, or enter the following address into the Chrome address bar: chrome://extensions
2. Enable the "Developer mode" option in the top-right corner
3. Click UPDATE in the top navigation bar.
4. Try to perform your test again, by revisiting the Participate link, or clicking the "In-person" test button.
That should do it! To read more about what's new in Participate Desktop, see our release notes.