Update app.js

js/app.js

@@ -23,7 +23,7 @@ function renderReleaseInfo(release) {
         });
 
         if (win_asset.length > 0) {
-            if (window.navigator.userAgent.indexOf("MSIE") === -1) // IE is fucked
+            if (window.navigator.appName === "Microsoft Internet Explorer") // IE is fucked
                 dl_btn.text(i18next.t("header.dl-btn-windows"));
             dl_btn.attr("href", win_asset[0].browser_download_url);
             all_dls.show();