fix(donations): resolve often reported "Error: Nonce verification has failed."

[DevinWalker]

User Story

As a donor, I want give without seeing a nonce verification error.

Current Behavior

This has been reported often on WP.org

https://wordpress.org/support/topic/error-nonce-verification-has-failed-4/

Steps to Reproduce

I'm not sure at the moment. More info is needed. @mathetos do you know how we can reproduce this issue?

Possible Solution

Caching issues.

[mathetos]

We've been getting these regularly since 2.1 was released, and I have not been able to replicate. The only one we fixed so far was the one where they had pasted the form html directly into a page builder text module.

[DevinWalker]

We've been getting them a lot since it was introduced within pre-2.1. I've seen more than a couple of support requests started on WP.org about it: https://wordpress.org/search/nonce+intext%3A%22Plugin%3A+Give+-+Donation+Plugin+and+Fundraising+Platform%22/?forums=1

@ravinderk please review the support requests and attempt to reproduce on your end. If you can't within a reasonable amount of time then we can move on.

[mehul0810]

I'm facing Nonce verification failed issue with latest release 2.1.3 which is resetting the nonce every couple of minutes.

[mehul0810]

Closing this issue as it is working fine for me now.

[jb510]

I'm still seeing this problem with GiveWP forms on a site hosted on WP Engine.

Excluding the pages from the cache individually (WPE Portal > Advanced Utilities (not available in all accounts but you can contact support and they'll put in cache exclusion rules for you).

Usually on WPE DONOTCACHEPAGE works... I see the code is at least trying to set that, not sure if it's not working or something else is going on.

[ravinderk]

@jb510 We added a fix for that issue in release/2.3.1 and planning to release it soon. for ref: #3820