v1.1.1: friendlier connection errors (superseded)
The web clipper now explains itself when it can't reach your May or Shall app: whether the app isn't running or your computer doesn't yet trust the local HTTPS certificate, with one-click Open-the-app and Retry actions in the popup and popover. The README gained a troubleshooting section for this, and the extension is now installable straight from the Chrome Web Store.