MS Edge Browser, SAP Portal, Open Workitem and press X to close the window: Blank White screen

Dear All,

Environment:

SAP Portal 7.50

Microsoft Edge Browser

Issue:

Login to SAP Portal and Open the Work item (which opens the backend WD ABAP application) P&F form when Close the Window by pressing the "X" Button to close the window then in Portal page we are getting Blank white Screen.

This seems to some session management issue. the issue occurs only from Microsoft Edge Browser whereas it is working fine with normal Internet Explorer.

ie From Internet Explorer, once we close the Window fby Pressing X then it comes to Portal with same page (Inbox of workitems) with the same session. it is working fine.

Thanks

NS