GM_webRequest listener was called twice when redirect a request to itself

[Nauxscript]

(Please fill out the issue template with your details)

Expected Behavior

I don’t know, maybe it can provide a parameter to decide whether or not to redirect the request? I only want to listen if a request is completed.

Actual Behavior

Every request triggers the listener twice.

Specifications

• Chromium: (i.e. 64.0.3282.140)
• TM: 4.19.0
• OS: 114.0.5735.198（正式版本） (arm64)

Script

// ==UserScript==
// @name         New Userscript
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  try to take over the world!
// @author       You
// @match        https://www.google.com/search?q=1&sxsrf=AB5stBgvWP6U-1ixZUuq12nQGotSn2iTRQ%3A1688541174747&source=hp&ei=9helZMeoK53B1e8PkNi1yAs&iflsig=AD69kcEAAAAAZKUmBklWhECBlqZuZW3V3LP8Jtn496CF&ved=0ahUKEwjH-6CHgvf_AhWdYPUHHRBsDbkQ4dUDCAk&uact=5&oq=1&gs_lcp=Cgdnd3Mtd2l6EAMyCwgAEIAEELEDEIMBMgsIABCABBCxAxCDATILCAAQgAQQsQMQgwEyBQgAEIAEMgsILhCABBCxAxCDATILCAAQgAQQsQMQgwEyCwgAEIAEELEDEIMBMgUIABCABDIFCAAQgAQyCwgAEIAEELEDEIMBOgcIIxDqAhAnUIYDWIYDYN8PaAFwAHgAgAF9iAF9kgEDMC4xmAEAoAEBsAEK&sclient=gws-wiz
// @icon         https://www.google.com/s2/favicons?sz=64&domain=google.com
// @grant        GM_webRequest
// @match        https://www.google.com/*
// @match        https://www.google.com/complete/search*
// ==/UserScript==

(function() {
    'use strict';
    GM_webRequest([
      { selector: 'https://www.google.com/complete/search*', action: { redirect: { from: "(.*)", to: "$1" } } },
    ], function (info, message, details) {
      console.log(info, message, details);
    });
})();

After using the above script, when I input something into google.com to trigger the listener, it outputs two logs in the dev-tool, and the network panel records three requests. However, if I disable this script, there is only one request record.

[derjanb]

{ redirect: { from: "(.*)", to: "$1" } }

Looks like your redirecting to the very same URL. So repeated listeners calls are to be expected, right?

[Nauxscript]

Looks like your redirecting to the very same URL. So repeated listeners calls are to be expected, right?

Yes, In fact, I only want to monitor the completion of these requests, not to cancel or redirect them. It is achieved based on #1086.

[Nauxscript]

@derjanb Is there a way to monitor the completion status of certain requests? I do not need to redirect or cancel them.

[7nik]

It is usually done with a hook on fetch, like:

const origFetch = fetch;
unsafeWindow.fetch = async (url, params) => {
  console.log("request started", url);
  const resp = await origFetch(url, params);
  console.log("request finished", url);
  return resp;
};

Similar can be done to XMLHttpRequest if it is used.