i have a trouble with the Widget connector i.e. by adding a Video or Twitter stream to any site in confluence. In the Webbrowser console i became an "500 internal Server" error.
by adding a Video, in the widget connector popup, the preview shows only an Grey gear Icon.
by adding a twitter stream, i can see the preview, but after click on the button "insert", nothing happens. the site would be autosave, but when i make another Change (add text), the Save button persists grey and not functional.