Title: iframe error
Last modified: April 19, 2021

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# iframe error

 *  Resolved [Mike Zielonka](https://wordpress.org/support/users/mikezielonka/)
 * (@mikezielonka)
 * [5 years, 1 month ago](https://wordpress.org/support/topic/iframe-error-3/)
 * Getting this error in Chrome Dev Tools:
 * admin.php?page=jetpack-boost:1 Refused to display ‘[https://wordpress.com/&#8217](https://wordpress.com/&#8217);
   in a frame because it set ‘X-Frame-Options’ to ‘sameorigin’.

Viewing 4 replies - 1 through 4 (of 4 total)

 *  Plugin Contributor [Mark (a11n)](https://wordpress.org/support/users/thingalon/)
 * (@thingalon)
 * [5 years, 1 month ago](https://wordpress.org/support/topic/iframe-error-3/#post-14339181)
 * Hey, thanks for trying Jetpack Boost out!
 * Jetpack Boost uses an invisible iframe to generate Critical CSS for your site.
   That iframe is configured with strict sandboxing rules for a few reasons; to 
   help protect your admin dashboard from unexpected script execution, to ensure
   that scripts for tracking page views aren’t triggered (so we don’t mess up your
   stats), and to ensure that the Critical CSS we generate reflects the initial 
   page-load content without external scripts affecting the layout.
 * Unfortunately, browsers tend to log those messages to the console to let developers
   know that resources are being blocked by the iframe’s sandboxing rules.
 * They aren’t a signal that anything has gone wrong; they just indicate that your
   browser is correctly enforcing the iframe sandboxing rules.
 *  Thread Starter [Mike Zielonka](https://wordpress.org/support/users/mikezielonka/)
 * (@mikezielonka)
 * [5 years, 1 month ago](https://wordpress.org/support/topic/iframe-error-3/#post-14339198)
 * It’s likely due to my wordpress.com not being connected to the sites since it
   uses my customers’ account.
 *  Thread Starter [Mike Zielonka](https://wordpress.org/support/users/mikezielonka/)
 * (@mikezielonka)
 * [5 years, 1 month ago](https://wordpress.org/support/topic/iframe-error-3/#post-14339387)
 * Yep!
 * Just wasn’t sure if you guys were aware. Could throw off a non-technical user!
 * Mike
 *  Plugin Contributor [Mark (a11n)](https://wordpress.org/support/users/thingalon/)
 * (@thingalon)
 * [5 years, 1 month ago](https://wordpress.org/support/topic/iframe-error-3/#post-14340010)
 * Oh! I apologize, Mike – I misunderstood the context of the error you were describing.
 * I’ve tracked down the issue, and we will release a fix in the next version of
   Jetpack Boost (soon!)
 * Thanks for the report!

Viewing 4 replies - 1 through 4 (of 4 total)

The topic ‘iframe error’ is closed to new replies.

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 * 4 replies
 * 2 participants
 * Last reply from: [Mark (a11n)](https://wordpress.org/support/users/thingalon/)
 * Last activity: [5 years, 1 month ago](https://wordpress.org/support/topic/iframe-error-3/#post-14340010)
 * Status: resolved