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TIWProxyPortRedirection class allows to create HTTP/HTTPS responses which use a different port other than the one actually being used to receive the requests. This can be useful in some cases where IntraWeb application works behind a (reverse) proxy or firewall which receives incoming requests using a different port number.


  • Apache Server used as a reverse proxy, listening to port 80
  • IntraWeb listenign to port 8080 for incoming requests


  • ServerController.ProxyPortRedirection.Active = True;
  • ServerController.ProxyPortRedirection.HttpPort = 80;

This will make IntraWeb to generate responses as it was installed/listening to port 80. This enable the application to keep working on port 8080 transparently behind a reverse proxy installed on port 80.

It also allows user to force redirection from HTTP to HTTPS in ISAPI (it is much harder to do it using IIS built-in functionality).

When redirecting to HTTPS in ISAPI, this is how you should configure ServerController properties:

  • ServerController.SSLOptions.NonSSLRequest = nsRedirect;
  • ServerController.ProxyPortRedirection.Active = True;
  • ServerController.ProxyPortRedirection.HttpsPort > 0



Class hierarchy

TPersistent -> TIWProxyPortRedirection


Create [Public]

Declaration: constructor Create;

Description: Constructs an instance of the class TIWProxyPortRedirection and initializes its data.

Assign [Public]

Declaration: procedure Assign(ASource: TPersistent); override;

Description: Copies properties values from another TIWProxyPortRedirection instance or TPersistent descendant.


  • ASource (TPersistent): [param description]


Active: Boolean; [Published, Read/Write]

Enables/Disables the redirection

HttpsPort: Integer; [Published, Read/Write]

Port number used for HTTPS redirection. If zero, port redirection to HTTPS will be disabled.

HttpPort: Integer; [Published, Read/Write]

Port number used for HTTP redirection. If zero, port redirection to HTTP will be disabled.




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