Title: Recaptcha couldn’t find user-provided function: onloadcallback
Last modified: February 21, 2024

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# Recaptcha couldn’t find user-provided function: onloadcallback

 *  [kuyawing](https://wordpress.org/support/users/kuyawing/)
 * (@kuyawing)
 * [2 years, 3 months ago](https://wordpress.org/support/topic/recaptcha-couldnt-find-user-provided-function-onloadcallback-3/)
 * Hello,
 * So I use the Ultimate Member – reCAPTCHA to avoid spam registrations in my Ultimate
   Member registration form in my site. Unfortunately, its not blocking all the 
   spam registrations. I use reCAPTCHA V2. I had the manual approval turned on so
   these spam users are not official or activated users so they can’t login or do
   anything in the site but they still populate entries in the users table in the
   database and I have to manually remove them.
 * I had all the credentials double checked and the fact that some of the registration
   are blocked means the reCAPTCHA API key is working and stuff.
 * POTENTION CAUSE:
 * After I submit the registration form, I could see the following error in the 
   browser’s console:
 * “recaptcha couldn’t find user-provided function: onloadcallback”
 * TROUBLESHOOTING:
 * (1) Find any other existing plugin that may use recaptcha.
 * ACTION: I thoroughly check the site and could confirm that only Ultimate Member
   is using reCAPTCHA V2
 * (2) Check browsers
 * ACTION: Tested Brave, Chrome, MS Edge, and Firefox browser and seeing the same
   error
 * (3) Deactivate and Activate Plugin Extension
 * ACTION: I deactivated and reactivated Ultimate Member – reCAPTCHA plugin last
   week and could confirm that some spam users passed through upon checking this
   week
 * (4) Update Ultimate member
 * ACTION: I just updated from 2.8.1 to 2.8.3 but I don’t think will fix the error
   since the details of 2.8.3 does not say anything about related error.
 * Conclusion:
 * Ultimate Member is great plugin but I do think this could be a plugin issue.
 * For now, I am changing to reCAPTCHA – V3 and will monitor the issue.

The topic ‘Recaptcha couldn’t find user-provided function: onloadcallback’ is closed
to new replies.

 * ![](https://s.w.org/plugins/geopattern-icon/um-recaptcha_ecf3ec.svg)
 * [Ultimate Member - reCAPTCHA](https://wordpress.org/plugins/um-recaptcha/)
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 * [Support Threads](https://wordpress.org/support/plugin/um-recaptcha/)
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 * [Unresolved Topics](https://wordpress.org/support/plugin/um-recaptcha/unresolved/)
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 * 0 replies
 * 1 participant
 * Last reply from: [kuyawing](https://wordpress.org/support/users/kuyawing/)
 * Last activity: [2 years, 3 months ago](https://wordpress.org/support/topic/recaptcha-couldnt-find-user-provided-function-onloadcallback-3/)
 * Status: not resolved