This rule validates that only supported functions and properties of the window global are accessed.
When LockerService is enabled, the framework prevents the
use of unsupported API objects or calls. That means your Lightning components code is
allowed to use:
- Features built into JavaScript (“intrinsic” features)
- Published, supported features built into the
Lightning
Component framework
- Published, supported features built into LockerService SecureObject
objects
Prior to LockerService, when you accessed the window global, you could call any function and access any property
available. When LockerService is enabled, the window global is “wrapped” by a new SecureWindow object, which controls
access to window and its functions and
properties. SecureWindow restricts you to using only “safe” features of the window global.