Troubleshooting

Blank iframe or refuses to display

• Check Salesforce clickjack/CSP settings for your external domain.
• Verify Site URL and FlowIframeEmbed page are public.
• Confirm parent page is embedding the Site URL (not an internal Salesforce URL).

Flow does not start

• flow must be the API Developer Name, not the flow label.
• Confirm the flow is activated.
• Confirm guest user has access to flow resources.

Inputs missing in the flow

• Include inputVars with exact param names.
• Names are case-sensitive and must match flow variable API names.
• Values in params are only passed when key is listed in inputVars.

Dynamic height not resizing

• Ensure FlowIframeEmbed sends frameHeight messages.
• Set allowedOrigin correctly when using widget.
• Check browser console for blocked cross-origin postMessage.

No redirect on completion

• Use endUrl (camelCase), not endurl.
• Confirm flow reaches FINISHED.
• Ensure endUrl is a valid absolute HTTPS URL.

Works as admin, fails for public users

• Guest profile likely missing VF/flow/object/Apex permissions.
• Re-check Site Guest User Profile page access and flow dependencies.

Integration support: JavaScript widget then Contact support.