The frame above is the widget as Codebeamer embeds it on a wiki page: no widget header, full width of the page, and a height that follows the widget's own resize calls.

This tab is the development apparatus, not part of Codebeamer. The page answers the widget's postMessage calls the way Codebeamer does, and the mock answers its REST calls from its database, so the widget runs the same code path as production. The widgets are those of the extensions registered with the mock (GET /mock/extensions).

The latest calls the mock REST API answered - from the widgets on this page, or any other client of the mock - and how each fared against codebeamer's API specification: a request the real server would refuse, or an answer that differs from the documented shape, is marked.