Twitter: Redirect media to :orig (original size)

twitter-redirect-media-orig.user.js

// ==UserScript==
// @name         Twitter: Redirect media to :orig
// @namespace    http://ryara.net/
// @version      0.21
// @author       tobbez
// @match        https://pbs.twimg.com/media/*
// @match        https://pbs-h2.twimg.com/media/*
// @grant        none
// @run-at document-start
// @downloadURL  https://gist.github.com/tobbez/c23cd46ce37eade711d900ad653f05a4/raw/twitter-redirect-media-orig.user.js
// @updateURL    https://gist.github.com/tobbez/c23cd46ce37eade711d900ad653f05a4/raw/twitter-redirect-media-orig.user.js
// ==/UserScript==

(function() {
    'use strict';

    let l = document.createElement('a');
    l.href = document.location;

    if (l.pathname.endsWith(':orig')) return;

    let qre = /:[^:/]+$/;
    if (l.pathname.match(qre)) {
        l.pathname = l.pathname.replace(qre, ':orig');
    } else {
        l.pathname += ':orig';
    }

    document.location.replace(l.href);
})();