2.2.14 Content-Disposition Header Field Extension

This section follows the product behavior described in endnote <10>.

This protocol defines a Content-Disposition header field parameter. The ABNF, as defined in [RFC5234], syntax defined in [RFC3261] section 25.1 is extended as follows:

Content-Disposition    = "Content-Disposition" HCOLON disp-type 
                            *(SEMI disp-param)
disp-type               =  "render" / "session" / "icon" / "alert"
                            / disp-extension-token
disp-param              =  handling-param / ms-proxyfallback-param 
                            / generic-param
ms-proxyfallback-param  =  "ms-proxy-2007fallback"