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
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
Salesforce Platform Development Process
Tell Me More: Where Visualforce Pages Can Appear in the Salesforce App
Guidelines and Best Practices
Sharing Visualforce Pages Between Mobile and Desktop
Excluding Visualforce Pages from Mobile or Desktop
Creating Visualforce Pages That Work in Mobile and Desktop
Choosing an Architecture for Visualforce Pages in the Salesforce App
Optimizing the Performance of Visualforce Pages in the Salesforce App
Visualforce Components and Features to Avoid in the Salesforce App
Known Visualforce Mobile Issues
Access or Permission Issues
Device Sensor Issues
Input Issues
Loading and Performance Issues
Navigation Issues
Network Issues
Salesforce Classic vs. Lightning Experience Issues
Updating Records Issues
User Interface Issues
Considerations and Limitations for Using Visualforce in the Salesforce App
Prepare a Support Request for Problems with Visualforce Pages in the Salesforce App
Choosing an Effective Page Layout
User Input and Interaction
Managing Navigation
Introduction to the Salesforce Lightning Design System
Using Visualforce Pages as Custom Actions
Performance Tuning for Visualforce Pages
Adding Visualforce to a Salesforce AppExchange App
Using JavaScript in Visualforce Pages
Best Practices
Standard Component Reference
Appendices
Glossary
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Network Issues

Network issues affect the connectivity of the Salesforce app.
Issue Solution
A network connection error message "Check your network connection and try again" appears on Visualforce pages when the network is active. This issue is exclusive to Salesforce for iOS. Turn off the org-wide setting Enable caching in Salesforce.