Browser Loop - incognito mode

update:

my tests all now start a 2-step open process

1, testedApp calling batch file for flush cache
         file code:
                    ipconfig /flushdns

2, function script with incognito mode
         - make sure testcomplete extension is enabled for incognito mode !!

 navigate browser as normal

ALL tests now run incognito and a free of any cache issues
- this can be hooked up to any start event or login process as the tests require

Here is my code for step 2 in case it helps anyone (Javascript)

---------------------------------

function open_secret_browser(browserName = "chrome"){

switch (browserName) {
case "edge":
browserName = "edge";
browserType = btEdge;
break;
case "firefox":
browserName = "firefox";
browserType = btFirefox;
break;
case "chrome":
default:
browserName = "chrome";
browserType = btChrome;
}

browserName = aqString.ToLower(browserName);

TestedApps.clear_cache.Run();

if (Sys.WaitBrowser(browserName).Exists){
var browser = Sys.Browser(browserName);
Log.Enabled = false // To disable the warning that might occur during closing of the browser
browser.Close();
Log.Enabled = true // enabling the logs back
}

Delay(500)
switch (browserName) {
case "edge":
Browsers.Item(btEdge).RunOptions = "-inprivate";
break;
case "firefox":
Browsers.Item(btFirefox).RunOptions = "-private-window";
break;
case "chrome":
default:
Browsers.Item(btChrome).RunOptions = "-incognito";

}

Browsers.Item(browserType).Run();
Sys.Browser(browserName).BrowserWindow(0).Maximize()
}