Quote:Microsoft is developing a new 'Edge Mode' that lets users visit sites using the same rendering engine as Classic Edge to continue using legacy web applications.
 
In the Chromium-based Microsoft Edge, users can enable a feature called 'Internet Explorer Mode' that causes the browser to emulate Internet Explorer 11. This mode is designed for organizations that need to utilize web apps that were designed for the legacy browser.
 
When Internet Explorer mode is enabled, the Internet Explorer icon will appear in the address bar and sites that you visit will think you are running Internet Explorer 11.

If Internet Explorer mode is enabled, the Microsoft Edge Dev and Canary builds have also added a new option called 'Open sites in Edge mode'. While nothing official has been announced about this feature, it will most likely allow the browser to emulate Classic Edge.