…x object in configuration:

In Microsoft IE 11.0.40 and Apple Safari 12.0.3 I get additional
DataTable initialisations with data source detected as 'dom' and settings Object containing ajax set to null.
It nevertheless tries to build an ajax request and thus and breaks when
ajax from settions object comes into use.

var table = $("#table").DataTable({
	serverSide: true,
	ajax: {
		url:"...",
		method:"...",
		data: function (){
			// ...
		}
	}
});

$("#table").DataTable().ajax.reload();