tampermonkey script for safebooru.org to open the original image by right-clicking

safebooru-open-image-right-click.js

// ==UserScript==
// @name         safebooru-open-image-right-click
// @version      0.1
// @description  script for safebooru.org to open the original image by right-clicking
// @author       github.com/xeleoss
// @match        *://safebooru.org/index.php*
// @icon         https://www.google.com/s2/favicons?sz=64&domain=safebooru.org
// @run-at document-end
// @updateUrl    https://gist.github.com/xeleoss/812b182d4f2543bff9a26b2fb512cba8
// ==/UserScript==

(function () {
    'use strict';
    console.log('safebooru original image by right-clicking working!');
    document.querySelectorAll('a').forEach(a => {
        const imgs = a.querySelectorAll('img');
        if (imgs.length !== 1 || !a.href) {
            return;
        }

        a.addEventListener('contextmenu', e => {
            e.preventDefault();
            const iframe = document.createElement('iframe');
            iframe.setAttribute('src', a.href);
            document.body.appendChild(iframe);
            iframe.addEventListener('load', () => {
                const image = iframe.contentDocument.getElementById('image');
                if (image) {
                    window.open(image.src, '_blank');
                }
                document.body.removeChild(iframe);
            });
        });
    });
})();