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Remove YouTube Share Identifier

Remove the "si" parameter from YouTube share links.

当前为 2025-04-14 提交的版本，查看 最新版本。

// ==UserScript==
// @name            Remove YouTube Share Identifier
// @name:vi         Xóa Định Danh Chia Sẻ YouTube
// @namespace       https://greasyfork.org/en/users/1240674-anhkhoakz
// @version         1.0.0
// @match           *://*.youtube.com/watch*
// @license         GPLv3; https://www.gnu.org/licenses/gpl-3.0.html#license-text
// @icon            https://i.imgur.com/f1OgZDI.png
// @grant           none
// @description     Remove the "si" parameter from YouTube share links.
// @description:vi  Xóa tham số "SI" khỏi các liên kết chia sẻ YouTube.
// @author          anhkhoakz; https://www.anhkhoakz.dev/
// ==/UserScript==

(() => {
	"use strict";

	/**
	 * Observes mutations in the DOM and processes added nodes.
	 * @param {MutationRecord[]} mutationsList - List of mutations observed.
	 */
	const observer = new MutationObserver((mutationsList) => {
		/**
		 * Filters added nodes to find "YT-COPY-LINK-RENDERER" elements.
		 * @type {HTMLElement[]}
		 */
		const filtered = mutationsList
			.filter(
				(x) =>
					x.addedNodes[0] &&
					/** @type {HTMLElement} */ (x.addedNodes[0]).tagName ===
						"YT-COPY-LINK-RENDERER"
			)
			.map((x) => /** @type {HTMLElement} */ (x.addedNodes[0]));

		if (!filtered.length) {
			return;
		}

		/** @type {HTMLInputElement | null} */
		const url_field = filtered[0].querySelector("input#share-url");
		if (!url_field) {
			return;
		}

		/**
		 * Splits and filters the URL to remove the "si" parameter.
		 * @type {string[]}
		 */
		const split = url_field.value
			.split(/[?&]/)
			.filter((x) => !x.includes("si="));
		url_field.value =
			split.length > 1 ? `${split[0]}?${split.slice(1).join("&")}` : split[0];

		let last_value = url_field.value;

		/**
		 * Updates the URL field value by removing the "si" parameter.
		 */
		const update_url = () => {
			if (!url_field) {
				return;
			}
			if (url_field.value === last_value) {
				return;
			}
			const split = url_field.value
				.split(/[?&]/)
				.filter((/** @type {string} */ x) => !x.includes("si="));
			url_field.value =
				split.length > 1 ? `${split[0]}?${split.slice(1).join("&")}` : split[0];
			last_value = url_field.value;
			window.requestAnimationFrame(update_url);
		};
		window.requestAnimationFrame(update_url);
	});

	observer.observe(document.documentElement, {
		childList: true,
		subtree: true,
	});
})();