I have a HTML5/JavaScript Store project built on VS2013 using WinJS2.0 and AngularJS. The app is pretty matured at this stage and runs fine both Windows 8.1 and Windows 10. However, when I try to built the same project using VS2017 I am running into issues with following objects
From what I understand is Windows Store App built using HTML/JavaScript using Edge underneath to execute. So why does it matter if I am using a different IDE to build the package. IDE is not performing any compilation. Please advice
You've changed from a Windows Store app (W8.1, backed by IE) to a UWP app (W10, backed by Edge). VS2013 can't create UWP apps and VS2017 can't create Windows Store apps, so you must have ported.
In particular, pointer events are now a w3c standard, and the MS-prefixed versions are removed from EdgeHtml in favor of standardized pointer events. See Pointer Event Updates
The execUnsafeLocalFunction has been removed in favor of a new security model. See Keep your app secure – Setting Application Content URI Rules (ACURs)