Title: Breaks checkout
Last modified: June 9, 2026

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# Breaks checkout

 *  Resolved [Rohan](https://wordpress.org/support/users/rocodes/)
 * (@rocodes)
 * [1 week, 2 days ago](https://wordpress.org/support/topic/breaks-checkout-2/)
 * Today the plugin has suddenly broken the checkout of our site. The console error
   is: _Uncaught ReferenceError: Square is not defined_ and that seems to be caused
   by [https://js.squarecdn.com/square-marketplace.js](https://js.squarecdn.com/square-marketplace.js)
   being blocked by Cloudflare for some reason?

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

 *  [Chandra Shekhar Pandey](https://wordpress.org/support/users/chandra8848/)
 * (@chandra8848)
 * [1 week, 2 days ago](https://wordpress.org/support/topic/breaks-checkout-2/#post-18932853)
 * Same for me as well.
 *  Thread Starter [Rohan](https://wordpress.org/support/users/rocodes/)
 * (@rocodes)
 * [1 week, 2 days ago](https://wordpress.org/support/topic/breaks-checkout-2/#post-18932855)
 * It looks like it’s an issue with Square’s CDN. [https://js.squarecdn.com/square-marketplace.js](https://js.squarecdn.com/square-marketplace.js)
   is throwing a 403 for me, breaking the checkout.
 *  Thread Starter [Rohan](https://wordpress.org/support/users/rocodes/)
 * (@rocodes)
 * [1 week, 2 days ago](https://wordpress.org/support/topic/breaks-checkout-2/#post-18932880)
 * Looks like the issue is resolved now.
 *  [Max from Afterpay](https://wordpress.org/support/users/mvdovenko/)
 * (@mvdovenko)
 * [1 week, 2 days ago](https://wordpress.org/support/topic/breaks-checkout-2/#post-18933238)
 * Hi [@rocodes](https://wordpress.org/support/users/rocodes/) 
   We would like to
   inform you that we experienced an incident affecting our CDN server, which may
   have impacted service availability.
 * Our technical team promptly identified the issue and has since fully resolved
   it. All services are now operating normally.
 * We sincerely apologize for any inconvenience this may have caused and appreciate
   your understanding. 
   Kind regards,Maksym Vdovenko

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

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 * 4 replies
 * 3 participants
 * Last reply from: [Max from Afterpay](https://wordpress.org/support/users/mvdovenko/)
 * Last activity: [1 week, 2 days ago](https://wordpress.org/support/topic/breaks-checkout-2/#post-18933238)
 * Status: resolved