Web-to-Host doesn’t work with Microsoft Edge browser on Windows 10.
Web-to-host will not work with Edge because Microsoft has dropped support for most plugins in the Edge browser. This means that Java, ActiveX, Silverlight, and other plugins are no longer supported. For this reason Microsoft has included Internet Explorer 11, which does support these plugins, on Windows 10 and it should work with Web-to-Host.
Please contact Micro Focus SupportLine should you have any further questions regarding this matter.