Title: Ajax error
Last modified: September 4, 2018

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# Ajax error

 *  [larnoult](https://wordpress.org/support/users/larnoult/)
 * (@larnoult)
 * [7 years, 9 months ago](https://wordpress.org/support/topic/ajax-error-34/)
 * Hello,
 * Query Monitor indicates the following Ajax erros
 *     ```
       favorites.js?ver=2.2.0:224 Favorites Localized Data
       favorites.js?ver=2.2.0:225 Object
       cross.js:1 [Deprecation] Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check https://xhr.spec.whatwg.org/.
       cross.getExtensionInfo @ cross.js:1
       favorites.js?ver=2.2.0:252 Nonce successfully generated: 5c63991411
       query-monitor.js?ver=1534759468:311 PHP Errors in Ajax Response
       query-monitor.js?ver=1534759468:319 Object
       (anonymous) @ query-monitor.js?ver=1534759468:319
       favorites.js?ver=2.2.0:297 The current user favorites were successfully loaded.
       favorites.js?ver=2.2.0:298 Object
       query-monitor.js?ver=1534759468:311 PHP Errors in Ajax Response
       query-monitor.js?ver=1534759468:319 Object
       (anonymous) @ query-monitor.js?ver=1534759468:319
       query-monitor.js?ver=1534759468:311 PHP Errors in Ajax Response
       query-monitor.js?ver=1534759468:319 Object
       (anonymous) @ query-monitor.js?ver=1534759468:319
       query-monitor.js?ver=1534759468:311 PHP Errors in Ajax Response
       query-monitor.js?ver=1534759468:319 Object
       (anonymous) @ query-monitor.js?ver=1534759468:319
       query-monitor.js?ver=1534759468:311 PHP Errors in Ajax Response
       query-monitor.js?ver=1534759468:319 Object
       (anonymous) @ query-monitor.js?ver=1534759468:319
       query-monitor.js?ver=1534759468:311 PHP Errors in Ajax Response
       query-monitor.js?ver=1534759468:319 {type: "warning", message: "call_user_func_array() expects parameter 1 to be a…rtcode_button' not found or invalid function name", file: "wp-includes/class-wp-hook.php", line: 286, stack: Array(1), …}
       ```
   
 * Any idea why?

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

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## Tags

 * [ajax error](https://wordpress.org/support/topic-tag/ajax-error/)

 * 0 replies
 * 1 participant
 * Last reply from: [larnoult](https://wordpress.org/support/users/larnoult/)
 * Last activity: [7 years, 9 months ago](https://wordpress.org/support/topic/ajax-error-34/)
 * Status: not resolved