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WP Ajax error with ACF & WP 3.6.1

  • Im using default theme of WP 3.6.1 and no plugins but ACF and after I have updated the WordPress to the latest version I got Ajax errors everywhere in backend (adding Widgets to sidebar etc)
    Fatal error: Call to undefined function wp_validate_redirect() in wp-includes/functions.php on line 1305

    As it seems right now the latest ACF (Version 4.2.2) is not supporting WP 3.6.1 version..

  • Hi @kenno

    Thanks for the feedback. I’ll do some testing and let you know if I find anything.


  • Hi @kenno

    I’ve done some testing and can’t replicate the issue. Are you still experiencing this issue?

    If so, can you list the plugins / theme you are using?
    Are you able to show some screenshots demonstrating where the error is?


  • FWIW, I found this thread from Maybe that’s useful. I haven’t seen this problem myself though.

  • I’ve noticed this on a few woo themes where the gravity forms product add-on plugin was installed. I believe it was version 2.44 and 2.45. They’ve updated that 2.47 now and it works fine.

    I just replaced the plugin files over the old one and the error clears.

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