(Delphi ActiveX) Replace or Remove Default HTTP Headers

See more HTTP Examples

Also see: Chilkat Http Default and Auto-Filled Headers

Note: This example requires Chilkat v11.2.0 or greater.

Chilkat for Delphi Downloads Chilkat ActiveX DLL for Delphi Chilkat non-ActiveX DLL for Delphi * The examples here use the ActiveX DLL.

uses
    Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
    Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, Chilkat_TLB;

...

procedure TForm1.Button1Click(Sender: TObject);
var
success: Integer;
http: TChilkatHttp;
responseBody: WideString;

begin
success := 0;

// This example assumes the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

http := TChilkatHttp.Create(Self);

// The following request will be sent.
// The Accept and Accept-Encoding headers are default headers added by Chilkat.

// Send a request with the following header:

// GET /helloWorld.txt HTTP/1.1
// Host: chilkatsoft.com
// Accept: */*
// Accept-Encoding: gzip

responseBody := http.QuickGetStr('https://chilkatsoft.com/helloWorld.txt');
// Examine the request header we just sent..
Memo1.Lines.Add(http.LastHeader);
Memo1.Lines.Add('----');

// Remove the default headers:
http.RemoveRequestHeader('Accept');
http.RemoveRequestHeader('Accept-Encoding');

// Send a request with the following header:

// GET /helloWorld.txt HTTP/1.1
// Host: chilkatsoft.com

responseBody := http.QuickGetStr('https://chilkatsoft.com/helloWorld.txt');
Memo1.Lines.Add(http.LastHeader);
end;