Error! Nonce Security Check Failed!

My client is using this plugin for a donation form on its website.

Most of the time (like in testing, quality control etc etc) the form behaves as expected. But when visitors try to use it, as frequently as not, they get a whole screen error page with the message “Error! Nonce Security Check Failed!”

The visitor is never shown the Stripe Checkout form.

I have turned on Debug and one of the array elements that shows up in the log is something called [_wp_stripe_checkout_button_nonce]. When the form works, this attribute has a value and the user is shown the Stripe checkout form.

What generates the nonce and how is it used? Why would it not be available or be incorrect?

I can’t would-be donors getting this error message. It will scare them off for good. If I can’t figure this out I will need to drop the plugin for a more reliable alternative.

cmkl

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