Nonce_failed error when submitting form

  • Resolved jernias

    (@jernias)


    5 months, 2 weeks ago

    Dear Staff,

    I am using JetFormBuilder for forms and getting “nonce_failed” error when submitting form. When I disable Litespeed, error resolves. I didn’t enable cache for any page, just using “memcached” object cache and css optimization. I am sure its related to object cache because when error first appeared, I was using Litespeed for only object cache, nothing more.

    I added ESI Nonces as following and form submission solved for users except admin.
    stats_nonce
    subscribe_nonce
    jet_fb_nonce private
    jet_formbuilder_nonce private
    ajax_linking_nonce private jet* private
    elementor_* private
    wp_nonce private

    Also added these ones to cookie exclude
    jet_fb_nonce
    jet_formbuilder_nonce
    wp_nonce
    _ajax_linking_nonce

    Last Report Number: AXRNPFCR
    Last Report Date: 12/16/2025 18:00:36

Viewing 7 replies - 16 through 22 (of 22 total)
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  • Plugin Support qtwrk

    (@qtwrk)

    5 months ago

    when you use default setting , does the issue happen immediately ? or after certain time ?

    Thread Starter jernias

    (@jernias)

    5 months ago

    tried submitting form just after resetting to default settings but error was still there. should i wait for maybe half or 1 day to try?

    I reverted back to my old settings, i can try it again if necessary.

    Plugin Support qtwrk

    (@qtwrk)

    5 months ago

    if it fails immediately after you enable plugin , and with default setting, then it’s something else than nonce

    please create a ticket by mail to support at litespeedtech.com with reference link to this topic , we will investigate further.

    Thread Starter jernias

    (@jernias)

    5 months ago

    thanks @qtwrk , I sent a mail to that adress

    Plugin Support litetim

    (@litetim)

    4 months, 3 weeks ago

    @jernias thank you for the report.

    The issue was fixed by modifying JetFormBuilder compatibility code with Litespeed.
    In file: wp-content/plugins/jetformbuilder/compatibility/litespeed/litespeed.php function on_render_form comment out the line $this->remove_hooks();
    This is temporary fix, it will be overwritten when the plugin JetFormBuilder is being updated.

    Natacha

    (@chickwithbob)

    1 month, 1 week ago

    > When I disable Litespeed, error resolves

    This was the clue for me – nonce validation issues are most often cache-related.

    In case it helps anyone else, I was able to fix the nonce error by setting the specific page with the form to never cache – Litespeed provides this option on a page by page basis.

    • This reply was modified 1 month, 1 week ago by Natacha.
    Plugin Support litetim

    (@litetim)

    2 days, 18 hours ago

    @jernias and @chickwithbob the fix was added to JetFormBuilder https://github.com/Crocoblock/jetformbuilder/issues/603

Viewing 7 replies - 16 through 22 (of 22 total)
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