DELPHI - How prevent use cache data during navigation to page

Use NavNoReadFromCache flag as second optional parameter.

var
  WebBrowser : TWebBrowser;
begin
  ..
  WebBrowser.Navigate( self.sName, 4 {NavNoReadFromCache} );

Note: You can use here many other interesting options (you can combine it):

navOpenInNewWindow = $00000001;
navNoHistory = $00000002;
navNoReadFromCache = $00000004;
navNoWriteToCache = $00000008;
navAllowAutosearch = $00000010;
navBrowserBar = $00000020;
navHyperlink = $00000040;
navEnforceRestricted = $00000080;
navNewWindowsManaged = $00000100;
navUntrustedForDownload = $00000200;
navTrustedForActiveX = $00000400;
navOpenInNewTab = $00000800;
navOpenInBackgroundTab = $00001000;
navKeepWordWheelText = $00002000;
navVirtualTab = $00004000;
navBlockRedirectsXDomain = $00008000;
navOpenNewForegroundTab = $00010000;