Preview Visualforce locally

Use the local server for Visualforce controller and page preview work. The local server gives useful /apex/<PageName> previews. It does not promise exact hosted Visualforce behavior.

Before you start

Run from the project root. Pick a fixed port for manual browser work or an ephemeral address with a ready file for scripts.

Steps

Start the Visualforce preview server:

glade dev vf --project . --port 8080

Start on an available local port and write readiness data:

glade dev vf --project . --addr 127.0.0.1:0 --ready-file /tmp/glade-vf-ready.json

Check the local support endpoint:

curl http://127.0.0.1:8080/services/data/v61.0/glade/visualforce/support

Expected output

Glade prints the bind address and serves /apex/<PageName> routes. The support endpoint returns local Visualforce capability data for the running server.

Common wrong turn

Do not treat local preview as exact hosted chrome, lifecycle timing, remoting, PDF output, or every component edge. Use Salesforce for final hosted Visualforce checks.

Deeper reference

• Visualforce preview
• Visualforce support matrix
• LWC preview
• What runs locally