=========
Embedding
=========

Surveys can be embedded into external sites via a dedicated iframe view.

Quick start
===========

1. Edit the survey and set **Embedding mode** to **Iframe**.
2. Use the embed view in an iframe: ``/@@viewer-embed``.

.. code-block:: html

   <iframe
     src="https://your-plone-site.com/surveys/customer-satisfaction/@@viewer-embed"
     width="100%"
     height="800"
     style="border: 0;"
     loading="lazy"
     title="Customer Satisfaction Survey">
   </iframe>

Security
========

Embedding is opt-in per survey. When enabled:

- ``X-Frame-Options`` is cleared for the embed view.
- ``Content-Security-Policy: frame-ancestors *`` is set.

When embedding is disabled, the embed view returns HTTP 403.