The Content Security Policy (CSP) in Adobe Commerce (Magento) restricts the types of content that can be loaded on a page to protect against malicious attacks, such as cross-site scripting (XSS). When an iframe is added, and a JavaScript library is loaded from an external source, these resources must be whitelisted explicitly using the csp_whitelist.xml file.
In this specific case:
* The frame-src directive controls the sources from which iframes can be embedded. Since the developer is embedding an iframe from an external domain, they need to whitelist this domain for frame-src.
* The script-src directive controls the sources from which JavaScript files can be loaded. The external JavaScript library must be whitelisted under script-src to allow it to execute.
Therefore, the correct policy IDs to whitelist are:
* frame-src: to allow the embedding of content from an external domain in an iframe.
* script-src: to allow the loading and execution of JavaScript files from the external domain.
Here's how to update the csp_whitelist.xml file with the correct directives:
<?xml version="1.0"?>
<whitelist xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation=" urn:magento:module:Magento_Csp:etc/csp_whitelist.xsd">
<policy id="frame-src">
<values>
<value id="your-external-domain.com"/>
</values>
</policy>
<policy id="script-src">
<values>
<value id="your-external-domain.com"/>
</values>
</policy>
</whitelist>
Replace your-external-domain.com with the actual domain of the external iframe and JavaScript source.
Additional Resources:
* Adobe Commerce Developer Guide: Content Security Policy (CSP)
* CSP Policies and Directives: Explanation of all supported CSP directives and how to configure them.
