setRequestHeader

Summary

Sets the value of an XMLHttpRequest header.

Method of apis/xhr/XMLHttpRequestapis/xhr/XMLHttpRequest

Syntax

 object.setRequestHeader(header, value);

Parameters

header

Data-type

String

Specifies the header name.

value

Data-type

String

Specifies the header value.

Return Value

No return value

Usage

 If used, must be called after open(), but before send().

Notes

Refer to RFC2616, Section 14: Header Field Definitions for a general list of standard headers. The server is ultimately responsible for honoring the headers of the request. By far the most common request header is Content-Type, which is required by some XML Web services.

Related specifications

W3C XMLHttpRequest Specification

W3C Working Draft

Attributions

• Microsoft Developer Network: Windows Internet Explorer API reference Article