In Dynamics 365 9.0 there was quite a big change regarding how to access form attributes and controls - instead of Xrm.Page namespace, we should pass executionContext to a function and get formCont...

I used this article to open a popup window when clicking on a button in the Lead form. In the onclick event of a button in this popup window, I want to set the value of a field in the parent form. ...

Any ideas how we can we use executionContext.getFormContext() with an HTML web resource? only method that seems to work is parent.Xrm.Page which is now deprecated.