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Do not auto-follow redirect with WinHttpRequest.5.1 and AutoIt

Learn how to stop the auto-following behavior of WinHttpRequest.5.1 in AutoIt.

Created: 2012-11-26 15:22

The default behavior of WinHttpRequest.5.1 is to automatically follow redirects, this can be a problem when you want to catch the headers of a response, before following a redirect. To change this behavior in AutoIt, you use the Option property of the WinHttpRequest.5.1 com object.

Note. If you disable auto-following, you will have to look for the location header on your own, and follow any redirects as needed.

Disable auto-following of redirects

Below is an example of how you can set your WinHttpRequest.5.1 com object in AutoIt, to not automatically follow redirects.

$oHTTP.Option(6) = false ; do not follow redirects automatically

The option needs to be set after creating the object, and before sending the request. A fully working example has been included below:

$oHTTP = ObjCreate("winhttp.winhttprequest.5.1")
$oHTTP.Open("GET", "", False)

$oHTTP.Option(6) = false ; do not follow redirects automatically

$oReceived = $oHTTP.ResponseText
$oStatusCode = $oHTTP.Status

If $oStatusCode == 200 then
 $file = FileOpen("Received.html", 2) ; The value of 2 overwrites the file if it already exists
 FileWrite($file, $oReceived)