property Headers: TScWebHeaderCollection;

 

Description

Specifies a collection of the name/value pairs that make up the HTTP headers.

The Headers collection contains the protocol headers associated with the request. The following table lists the HTTP headers that are not stored in the Headers collection but are set by properties or methods.

Header

Set by

Accept

Set by the Accept property.

Connection

Set by the Connection property and KeepAlive property.

Content-Length

Set by the ContentLength property.

Content-Type

Set by the ContentType property.

Date

Set by the Date property.

Expect

Set by the Expect property.

From

Set by the From property.

Host

Set by the Host property.

If-Modified-Since

Set by the IfModifiedSince property.

Range

Set by the Range property.

Referer

Set by the Referer property.

Transfer-Encoding

Set by the TransferEncoding property.

Upgrade

Set by the Upgrade property.

User-Agent

Set by the UserAgent property.

 

The TScWebHeaderCollection.Add method throws an Exception if you try to set one of these protected headers.

You should not assume that the header values will remain unchanged, because Web servers and caches may change or add headers to a Web request.

 

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