Lightning Aura Components Developer Guide

What Is the Lightning Component Framework?
Quick Start
Creating Components
Using Components
Communicating with Events
Communicating Across the DOM with Lightning Message Service
Creating Apps
Styling Apps
Developing Secure Code
What is Lightning Locker?
JavaScript Strict Mode Enforcement
DOM Access Containment
Secure Wrappers
eval() Function is Limited by Lightning Locker
MIME Types Permitted
Access to Supported JavaScript API Framework Methods Only
What Does Lightning Locker Affect?
Lightning Locker Tools
Lightning Locker API Viewer
Locker Console Overview
Select the Locker API Version for an Org
Disable Lightning Locker for a Component
Don’t Mix Component API Versions
Lightning Locker Disabled for Unsupported Browsers
Content Security Policy Overview
Using JavaScript
Working with Salesforce Data
Testing Components with Lightning Testing Service
Debugging
Performance
Reference
PDF

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Lightning Locker API Viewer

Locker API Viewer shows Lightning Locker’s support of the standard DOM APIs in the Window, Document, and Element objects. The SecureWindow, SecureDocument, and SecureElement wrappers prevent use of APIs that are labeled Not Supported.

Locker API Viewer is available in the Lightning Component Library.

Locker API Viewer sample page showing APIs supported by SecureDocument

Locker API Viewer lets you quickly see which standard DOM APIs are supported by Lightning Locker.

There are several ways to validate your code to ensure compatibility with Aura component APIs. For more information, see Validations for Aura Component Code.

Use the Locker Console tool to check JavaScript code’s compatibility with Lightning Locker.

Reference Doc App

The reference doc app lists the API for SecureComponent under JavaScript API | Component.

SecureAura is the wrapper for $A.

Access the reference doc app at:

https://MyDomainName.lightning.force.com/auradocs/reference.app..