SPWebApplication.AllowedInlineDownloadedMimeTypes property
SharePoint 2013
Gets the MIME content-types that are not forced to be saved to the downloading user's local machine. Files withcontent-types that are not listed in this collection are assumed to contain script and therefore can interact with the application on the user'sbehalf.
Assembly: Microsoft.SharePoint (in Microsoft.SharePoint.dll)
Property value
Type: System.Collections.Generic.ICollection<String>ICollection<T>
The list of MIME content-types for this application which are allowed to be viewed without first saving to the user's localdrive.
This property is ignored when the BrowserFileHandling property is set to Permissive.