Automatically add a period to the end of your chat message

// ==UserScript==
// @name Intercept and Modify POST Requests Efficiently
// @namespace http://tampermonkey.net/
// @version 1.3
// @description Efficiently intercepts and modifies 'message' payload in POST requests
// @match https://lolz.live/*
// @grant none
// ==/UserScript==

(function() {
const originalOpen = XMLHttpRequest.prototype.open;
const originalSend = XMLHttpRequest.prototype.send;

XMLHttpRequest.prototype.open = function(method, url) {
this.isTargetRequest = (method === 'POST' && url.includes('/chatbox/post-message'));
originalOpen.apply(this, arguments);
};

XMLHttpRequest.prototype.send = function(body) {
if (this.isTargetRequest && typeof body === 'string' && body.includes('message=')) {
const payload = new URLSearchParams(body);
let message = payload.get('message');

if (message) {
// Capitalize the first letter of the message
message = message.charAt(0).toUpperCase() + message.slice(1);

// Capitalize the first letter after each comma
message = message.replace(/, (\S)/g, (match, p1) => `, ${p1.toUpperCase()}`);

// Ensure the message ends with a period
if (!message.endsWith('.')) {
message += '.';
}

payload.set('message', message);
body = payload.toString();
}
}
originalSend.call(this, body);
};
})();

JS

// ==UserScript==

// @name         Intercept and Modify POST Requests Efficiently

// @namespace    http://tampermonkey.net/

// @version      1.3

// @description  Efficiently intercepts and modifies 'message' payload in POST requests

// @match        https://lolz.live/*

// @grant        none

// ==/UserScript==



(function() {

    const originalOpen = XMLHttpRequest.prototype.open;

    const originalSend = XMLHttpRequest.prototype.send;



    XMLHttpRequest.prototype.open = function(method, url) {

        this.isTargetRequest = (method === 'POST' && url.includes('/chatbox/post-message'));

        originalOpen.apply(this, arguments);

    };



    XMLHttpRequest.prototype.send = function(body) {

        if (this.isTargetRequest && typeof body === 'string' && body.includes('message=')) {

            const payload = new URLSearchParams(body);

            let message = payload.get('message');



            if (message) {

                // Capitalize the first letter of the message

                message = message.charAt(0).toUpperCase() + message.slice(1);



                // Capitalize the first letter after each comma

                message = message.replace(/, (\S)/g, (match, p1) => `, ${p1.toUpperCase()}`);



                // Ensure the message ends with a period

                if (!message.endsWith('.')) {

                    message += '.';

                }



                payload.set('message', message);

                body = payload.toString();

            }

        }

        originalSend.call(this, body);

    };

})();

кратко:
пишите сообщение например
"Привет" оно отправляется в чат как "Привет."
Считаю расширение имбой.
Его использует Финляндия
если нужно могу под оффтопик сделать