This rule validates that only supported functions and properties of the document 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 document global, you could call any function and access any property
available. When LockerService is enabled, the document global is “wrapped” by a new SecureDocument object, which
controls access to document and its functions
and properties. SecureDocument restricts you to using only “safe” features of the
document global.