解决marketplace.visualstudio.com已隐藏下载离线安装包按钮

离线环境下想要安装vs code插件，发现不知何时开始marketplace.visualstudio.com已隐藏了下载按钮。于是就编写了此脚本并发布到油猴：
visualstudio marketplace toolkit | greasyfork.org

并附上源代码：

    //--------------------------marketplace.visualstudio.com----download-------------------------------//
    let vsMarketDownloader = (function () {
        return {
            addDownloadBtn: function () {
                if (window.location.host.toUpperCase() !== 'MARKETPLACE.VISUALSTUDIO.COM') return false;
                let arr = window.location.href.split('?')[1].split('=')[1].split('.');
                let author = arr[0];
                let id = arr[1];
                var histories = document.querySelectorAll('tr.version-history-container-row');
                for (var i = 1; i < histories.length; i++) {
                    let version = histories[i].firstChild.textContent;
                    let a = document.createElement('a');
                    a.className = 'bowtie-icon bowtie-install';
                    a.style = 'margin-left: 1rem;'
                    a.href = `https://marketplace.visualstudio.com/_apis/public/gallery/publishers/${author}/vsextensions/${id}/${version}/vspackage`;
                    histories[i].firstChild.appendChild(a);
                }
                return true;
            }
        }
    })();
    setTimeout(() => {
        vsMarketDownloader.addDownloadBtn();
    }, 1200);

使用后会在页面的【版本历史】列表中添加一个下载按钮，点击即可下载对应版本的离线安装包。
效果如下：