Title: css error
Last modified: June 29, 2020

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# css error

 *  Resolved [aelsharawi](https://wordpress.org/support/users/aelsharawi/)
 * (@aelsharawi)
 * [5 years, 11 months ago](https://wordpress.org/support/topic/css-error-31/)
 *     ```
       Uncaught DOMException: Failed to read the 'cssRules' property from 'CSSStyleSheet': Cannot access rules
           at et_core_page_resource_fallback (https://domain.com/:1:430)
           at HTMLLinkElement.onload (https://domain.com/:1:50736)
       et_core_page_resource_fallback @ (index):1
       onload @ (index):1
       2(index):1 
       ```
   
 * I got this error when cdn enabler is enabled

Viewing 1 replies (of 1 total)

 *  [deltafactory](https://wordpress.org/support/users/deltafactory/)
 * (@deltafactory)
 * [5 years, 11 months ago](https://wordpress.org/support/topic/css-error-31/#post-13078469)
 * I’m guessing that your CORS headers are not setup correctly for the CSS asset
   in question. Some JS on the page is trying to access it but failing the CORS 
   check.
 * If the problem is still happening, a real URL would allow someone to help troubleshoot.

Viewing 1 replies (of 1 total)

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

 * ![](https://ps.w.org/cdn-enabler/assets/icon-256x256.png?rev=2472538)
 * [CDN Enabler](https://wordpress.org/plugins/cdn-enabler/)
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 * [Active Topics](https://wordpress.org/support/plugin/cdn-enabler/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/cdn-enabler/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/cdn-enabler/reviews/)

 * 1 reply
 * 2 participants
 * Last reply from: [deltafactory](https://wordpress.org/support/users/deltafactory/)
 * Last activity: [5 years, 11 months ago](https://wordpress.org/support/topic/css-error-31/#post-13078469)
 * Status: resolved