Visualforce Developer Guide

Introducing Visualforce
Tools for Visualforce Development
Getting a Quick Start with Visualforce
Customizing the Appearance and Output of Visualforce Pages
Standard Controllers
Standard List Controllers
Custom Controllers and Controller Extensions
Live Controller (Pilot)
Advanced Examples
Overriding Buttons, Links, and Tabs with Visualforce
Using Static Resources
Creating and Using Custom Components
Dynamic Visualforce Bindings
Dynamic Visualforce Components
Integrating Email with Visualforce
Visualforce Charting
Creating Maps with Visualforce
Render Flows with Visualforce
Templating with Visualforce
Developing Salesforce Apps with Visualforce
Adding Visualforce to a Salesforce AppExchange App
Using JavaScript in Visualforce Pages
Communicating Across the DOM with Lightning Message Service (Developer Preview)
Create a Message Channel
Publish on a Message Channel
Subscribe and Unsubscribe from a Message Channel
Considerations and Limitations
Best Practices
Standard Component Reference
Appendices
Glossary
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Considerations and Limitations

Keep the following in mind when working with Lightning Message Channel in Visualforce.
Considerations
Lightning Message Service does not work for Visualforce's sforce.one library when pages are loaded in the Chatter Publisher that uses <chatter:feed showPublisher="true"/>. Use the native Lightning Publisher instead.

Lightning Message Service does not work in Visualforce pages that are included in Lightning Experience via iframes, including <wave:dashboard>, <apex:iframe>, and the standard HTML <iframe> tag. Instead, add Visualforce pages through the Lightning App Builder or as a utility bar item.
Visualforce only supports LightningMessageChannels where isExposed is true. See LightningMessageChannel in the Metadata API Developer Guide for more information.
Lightning Message Service does not work outside of Lightning Experience, such as Salesforce Classic or when previewing Visualforce from Setup.
Limitations
Do not include a message channel in a package that you plan to install into production orgs. The installation will fail.
The Lightning Message Service API doesn’t support the following experiences during Developer Preview:
  • Salesforce mobile app
  • Lightning Out
  • Lightning Communities
  • Visualforce record overrides