A broadcast is a special Office for the web scenario where navigation through a document is driven by one or more presenters. A set of attendees can follow along with the presenter remotely.

See also

present, attend

Host Page
Host Frame
Outer Frame

The host page (also called the ‘host frame’ or ‘outer frame’) is the HTML page which will host an iframe that points to an Office for the web application.

Session Context

The Session Context is an optional parameter that a host can include on a WOPI request. It is a string, and is passed to Office for the web in the sc query string parameter. If included on a WOPI request, Office for the web will return the value of sc as the value of the X-WOPI-SessionContext HTTP header when making the CheckFileInfo and CheckFolderInfo WOPI requests.