Canvas Developer Guide

Introducing Canvas
Quick Start
Quick Start—Advanced
Canvas SDK
Referencing the Canvas SDK
Authentication
Getting Context in Your Canvas App
Cross-Domain XHR
Alternatives to Cookies for User Tracking
Resizing a Canvas App
Implementing Canvas App Events
Using Streaming API in a Canvas App
Debugging in a Canvas App
Using the <select> Tag in a Canvas App
Canvas Apps and Visualforce Pages
Lightning Component Code Examples
Canvas Apps in a Page Layout or a Mobile Card
Canvas Apps in the Publisher
Canvas Apps in the Chatter Feed
Canvas in the Salesforce Mobile App
Customizing Your App Lifecycle
Objects
Canvas Limits
PDF

Note: This release is in preview. Features described here don’t become generally available until the latest general availability date that Salesforce announces for this release. Before then, and where features are noted as beta, pilot, or developer preview, we can’t guarantee general availability within any particular time frame or at all. Make your purchase decisions only on the basis of generally available products and features.

Debugging in a Canvas App

You must use Chrome, Firefox, or Safari to follow these steps.

When using the Canvas SDK, you can enable debug mode to make troubleshooting easier.

  1. With your canvas app open in your browser, open the console.
  2. Type Sfdc.canvas.console.enable(); and press return.
  3. Refresh your browser.

Use data from this screen to debug canvas-related problems.