I want to make add new case record button on contact page

Hello,

I want to add custom button to add new record of case. I added custom button to contact edit page, made onClick event handler and using this function to open add record page of case:

 

_contactObject.openCardInChain({
	"schemaName": "CasePage",
	"operation": "add",
	"defaultValues": [{
		"name": "Contact",
		"value": _contactObject.get("Id"),
		"displayValue": _contactObject.get("Name")
	}]});

It works only when I am on Contact edit page, reload page and clicked my button. or if I entered directly on Contact edit page using url.

But if I entered from Contact list page, this function is not working. It shows infinite loader and never stops. If I reload page while loader, it loads add record page of case, exactly what I want.

Unfortunately, it doesn't shows any error in console. I tried to debug this function and trace how it works, but at the and, it fires event and I can't understand why its handler not handling it.

We are using Bpm Online 7.14.1.935