What alternative are available for accessing Continuum WebClient from browsers other than Internet Explorer?
Continuum WebClient Server
While Internet Explorer is the only officially supported browser for Continuum WebClient, Microsoft has announced that support for Internet Explorer will end in June 2022.
When accessing WebClient sites using Microsoft Edge in Internet Explorer mode. WebClient server returns an error, indicating that Internet Explorer is needed to access WebClient.
It is possible to access WebClient using Microsoft Edge in Internet Explorer Mode
The method of specifying Internet Explorer Mode for a site’s webClient URL will depend on how the customer treats the configuration of Edge – either settings at the individual Edge level or via group policy settings.