Why is my iframe displaying \'Refused to display… in a frame because it set \'X-Frame-Options\' to \'SAMEORIGIN\'?\'

Iframe 'X-Frame-Options' Header Management

In web development, utilizing iframes to embed external content in a webpage is common. However, it can sometimes lead to security concerns. The 'X-Frame-Options' response header plays a crucial role in addressing this issue.

Consider the following situation: An iframe is created with attributes such as width, height, and a source URL. However, loading the external content results in an error: "Refused to display 'https://www.google.com.ua/' in a frame because it set 'X-Frame-Options' to 'SAMEORIGIN'."

Understanding the 'X-Frame-Options' Header

The 'X-Frame-Options' header controls whether a webpage can be rendered within an iframe element in other domains or subdomains. It is set by the domain from which the content is being requested. In the example, google.com.ua has set the header to 'SAMEORIGIN', which means it allows the iframe from itself to display the content.

Addressing the Error

The error arises because the iframe attempts to load content from a different domain than its own. The iframe can't override the 'SAMEORIGIN' setting, which originates from the external server. As a result, the iframe is prevented from displaying the targeted URL.

Solution

Unfortunately, it is not possible to set the 'X-Frame-Options' header directly from the iframe itself using JavaScript. This header is controlled by the server hosting the content you're attempting to display in the iframe. If you require the content to be loaded cross-origin, you will need to contact the website administrator or make adjustments on the server-side to modify the 'X-Frame-Options' header setting.

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