Check https website with authentication and check for a given content string

In custom.conf:

[content_check]
type=boolean
command=cscript "c:\content_check.js"

In content_check.js:

/*
 * This is basic auth http content check that:
 *
 * 1. Establishes a HTTPS connection to a given URL
 * 2. Provides basic HTTP authentication with given username and password
 * 3. Loads the page and does a search for the given content string
 * 4. Reports success(0) or failure(1).
 *
 * Usage:
 *
 * cscript content_check.js
 *
 */

// User defined variables
var strURL = "https://";
var strName = "user";
var strPassword = "pass";
// regular expression to rearch (JScript search() function is used)
var strRegex = "Hello, World";

// Perform check
var res = checkContent(strURL, strName, strPassword, strRegex);
// Exit with the result code
WScript.Quit(res);


// Content check routine body
function checkContent(strURL, strName, strPassword, strRegex)
{
  try
  {
    // 1. First check if we get a authorization request

    // Create the WinHTTPRequest ActiveX Object.
    var WinHttpReq = new ActiveXObject("WinHttp.WinHttpRequest.5.1");

    // Set timeouts in milliseconds
    WinHttpReq.SetTimeouts(
      60000,  // Resolve timeout
      60000,  // Connect timeout
      30000,  // Send timeout
      30000  // Receive timeout
    );

    // Set option to ignore all certificate errors
    // See descriptions at http://msdn.microsoft.com/en-us/library/Aa384108
    WinHttpReq.Option(4) = 0x3300;

    // Create an HTTP request.
    WinHttpReq.Open("GET", strURL, false);

    // Send the HTTP request.
    WinHttpReq.Send();

    // Check whether password request form appeared
    if (WinHttpReq.Status != 401) {
      throw new Error(WinHttpReq.Status, "No authentication form received");
    }


    // 2. Try to login using the username and password

    //  Create an HTTP request with login and password
    WinHttpReq.Open("GET", strURL, false);
    WinHttpReq.SetCredentials(strName, strPassword, 0);

    //  Send the HTTP request.
    WinHttpReq.Send();

    // Check whether login succeded and page loaded
    if (WinHttpReq.Status != 200) {
      throw new Error(WinHttpReq.Status, WinHttpReq.StatusText);
    }


    // 3. Do a search for the given content string (regexp is allowed)
    if (WinHttpReq.ResponseText.search(strRegex) == -1) {
      throw new Error(1, "Couldn't find match to given expression: " + strRegex);
    }

    // return "Success" code
    return 0;

  } catch (objError) {
    // Error handling
    var strError = "Content checker returned error: ";
    strError += (objError.number & 0xFFFF).toString() + "\n\n";
    strError += objError.description;

    WScript.Echo(strError);

    // return "Failure" code
    return 1;
  }
}