pxt-core/docfiles/pxtweb/browserRedirect.ts

Microsoft MakeCode provides Blocks / JavaScript / Python tools and editors

// redirect for IE11 (unsupported)
(function _() {
    if (typeof navigator !== "undefined" && /Trident/i.test(navigator.userAgent)
        && !/skipbrowsercheck=1/i.exec(window.location.href)
        && !/\/browsers/i.exec(window.location.href)) {
        window.location.href = "/browsers";
        return;
    }
})();