(13)-d. Note of caution

Since the Detail Panel feature uses iframe technology, the following usage will be limited due to protection against Click Jacking.
For more detail, please check Salesforce Help page

• (13)-d-1. Activate Click Jacking Protection on Visualforce page (besides custom setting)
• (13)-d-2. Embedding Detail Panel to Page Layout
• (13)-d-3. Page transition from Detail page