This module contains the implementation of the Badging API. The implementation is under active development.


See the explainer for details. The Badge interface is a member on Window and exposes two static methods:

  • set(contents): Sets the associated app's badge as a “flag” (the argument is ignored).
  • clear(): Sets the associated app's badge to nothing.


web_tests/badging/*.html tests that the API accepts/rejects the appropriate inputs (with a mock Mojo service). Testing at other layers will be added during implementation.