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http.setRequestHeader - define a custom request header
Syntax
http.setRequestHeader(header, value)
Parameters
http - is the variable name used in a prior call to new XMLHttpRequest;
header - string containing name of the header to set.
value - string value to set the header.
Returned Value
Zero if successful.
Description
Define a custom request header.
Example
var http = new XMLHttpRequest;
http.open("POST", "http://www.docorigin.com/echo.php");
http.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
var sData = "first=one&second=two";
http.send(sData);
var sResult = http.responseText; // what was sent back
_message("result='%s'", sResult);