Title: Block API Version
Last modified: July 19, 2026

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# Block API Version

 *  [dmccan](https://wordpress.org/support/users/dmccan/)
 * (@dmccan)
 * [2 weeks, 5 days ago](https://wordpress.org/support/topic/block-api-version-2/)
 * Hi Team, 
   I see in Chrome dev tools a warning: “The block “ninja-tables/guten-
   block” is registered with API version 1. This means that the post editor may 
   work as a non-iframe editor. Since all editors are planned to work as iframes
   in the future, set the `apiVersion` field to 3 and test the block inside the 
   iframe editor.”Regards

Viewing 1 replies (of 1 total)

 *  [Chinmoy Biswas](https://wordpress.org/support/users/chinmoy709/)
 * (@chinmoy709)
 * [2 weeks, 5 days ago](https://wordpress.org/support/topic/block-api-version-2/#post-18969433)
 * Hello there,
 * We apologize, we are unable to reproduce the warning on our end. Could you please
   share a screenshot showing exactly where the warning appears?
 * In the meantime, please follow these troubleshooting steps:
    - **Update Ninja Tables** to the latest version.
    - **Clear all caches**, including your browser, website, server, and CDN caches.
    - **Temporarily disable page optimization features** such as JavaScript minification,
      combination, delay, or defer.
 * If the warning persists, please submit a support ticket via this [Support Link](https://wpmanageninja.com/account/ticket/)
   and our support agents will investigate and resolve the issue.
 * Thank you!

Viewing 1 replies (of 1 total)

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 * 1 reply
 * 2 participants
 * Last reply from: [Chinmoy Biswas](https://wordpress.org/support/users/chinmoy709/)
 * Last activity: [2 weeks, 5 days ago](https://wordpress.org/support/topic/block-api-version-2/#post-18969433)
 * Status: not resolved