Window objects that are unsupported in Office Add-ins

For some versions of Windows and Office, add-ins run in a Trident (Internet Explorer 11) webview runtime. (For details, see Browsers and webview controls used by Office Add-ins.) Some properties or subproperties of the global window object are not supported in Trident. These properties are disabled in add-ins to ensure that your add-in provides a consistent experience to all users, regardless of which browser or webview control the add-in is using. This also helps AngularJS load properly.

The following is a list of the disabled properties. The list is a work in progress. If you discover additional window properties that do not work in add-ins, please use the feedback tool below to tell us.

• window.history.pushState
• window.history.replaceState

See also

• Browsers and webview controls used by Office Add-ins