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HttpCacheVaryByHeaders.VaryByUnspecifiedParameters Method

Causes ASP.NET to vary by all header values and sets the Vary HTTP header to the value * (an asterisk). All other Vary header information to be dropped.

Namespace:  System.Web
Assembly:  System.Web (in System.Web.dll)

public void VaryByUnspecifiedParameters()

The Vary header indicates the request-header fields that the server uses to determine which of multiple cached responses is sent in response to a client request. The * value specifies that the server selects the response based on parameters not specified in request headers (for example, the network address of the client).

For more information, see RFC 2616: Hypertext Transfer Protocol -- HTTP/1.1, available on the World Wide Web Consortium (W3C) Web site. See section 14, "Header Field Definitions", for complete details.

.NET Framework

Supported in: 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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