The Internet Explorer is an outdated browser that using outdated web technology, almost nobody uses it anymore so we do not plan to add additional code to the theme to support outdated internet browsers.
On March 17, 2015, Microsoft announced that Microsoft Edge would replace Internet Explorer as the default browser on its Windows 10 devices. This effectively makes Internet Explorer 11 the last release. Internet Explorer, however, remains on Windows 10 and Windows Server 2019 primarily for enterprise purposes. Since January 12, 2016, only Internet Explorer 11 has official support for consumers; extended support for Internet Explorer 10 ended on 31 January 2020. Support varies based on the operating system’s technical capabilities and its support life cycle.