X-Frame-Options header

To help prevent Clickjacking exploits, we added an option to use the X-Frame-Options HTTP request header in requests to your storefront.

The X-Frame-Options header enables you to specify whether or not a browser should be allowed to render a page in a <frame>, <iframe>, or <object> as follows:

  • DENY: Page cannot be displayed in a frame.
  • SAMEORIGIN: (default) Page can be displayed only in a frame on the same origin as the page itself.
WARNING

The ALLOW-FROM <uri> option has been deprecated because Commerce-supported browsers no longer support it. See Browser compatibility.

WARNING

For security reasons, Adobe strongly recommends against running the Commerce storefront in a frame.

Implement X-Frame-Options

Set a value for X-Frame-Options in <magento_root>/app/etc/env.php. Following is the default value:

'x-frame-options' => 'SAMEORIGIN',
TIP

It is more secure to edit the env.php file than it is to set a value in the Admin.

Verify your setting for X-Frame-Options

To verify your setting, view HTTP headers on any storefront page. There are several ways to do this, including using a web browser inspector.

The following example uses curl, which you can run from any machine that can connect to your Commerce server over the HTTP protocol.

Use the following command:

curl -I -v --location-trusted '<your storefront URL>'

Look for the X-Frame-Options value in the headers.

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