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HTTP headers | X-Frame-Options

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HTTP headers are used to pass additional information with HTTP responses or HTTP requests. The X-Frame-Options is used to prevent the site from clickjacking attacks. It defines whether or not a browser should be allowed to render a page in a <frame>, <iframe>, <embed>, or <object>. The frame-ancestors directive present in Content-Security-Policy(CSP) obsoletes X-Frame-Options. 


X-Frame-Options: directive


  • deny: This directive stops the site from being rendered in <frame> i.e. site can’t be embedded into other sites.
  • sameorigin: This directive allows the page to be rendered in the frame if the frame has the same origin as the page.
  • allow-from uri: This directive has now become obsolete and shouldn’t be used. It is not supported by modern browsers. In this the page can be rendered in the <frame> that originated from a specified URI.


  • On Apache: 
    To send the X-Frame-Options to all the pages of the same origins, set this to your site’s configuration.
Header always set X-Frame-Options "sameorigin"
  • Open httpd.conf file and add the following code to deny the permission
header always set x-frame-options "DENY"
  • On Nginx: Open the server configuration file and add the following code to allow only from the same origin
add_header x-frame-options "SAMEORIGIN" always;

Supported Browsers: The browsers supported by X-Frame-Options are listed below: 

  • Chrome
  • Internet Explorer
  • Safari
  • Firefox
  • Edge

Note: Only Internet Explorer and Microsoft Edge support the allow-from directive.

Last Updated : 28 Apr, 2023
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