Issues with WP Fastest Cache

Hello @dsl225,

I”m sorry to see you faced an issue. Could you please send me a screenshot of your WPFC settings so to have them on my lab site and try to replicate it as normally I was not able to replicate it on my end. Please remember to strip/ blur out any personal/ confidential information from the screenshot.

Looking forward to hearing from you on it.

Thank you,
Prathamesh Palve

Thanks @wpmudev-support7 for your feedback.

It is difficult to replicate as the issue appears after 1-3 days only after clearing cache.

In the meanwhile I also contacted the support of WPFC and it seems the issue is related to the preload option I have active there and the WP nonce cache.

They suggested I follow this guide:
https://www.wpfastestcache.com/tutorial/wordpress-nonce-cache/

I did this yesterday and set the deletion to every 10 hours.
Can you confirm that this is the correct periodicity to clean nonces for Forminator?

As of today, that seems to work but it’s too early to really say if it works definitely.

If this appears to be really the case, I suggest you add this somewhere to your KB as I found similar recommendation for WP Rocket here:
https://docs.wp-rocket.me/article/975-nonces-and-cache-lifespan

My WPFC settings at this site are here:
https://cloudup.com/c4Aum7U4qSf

Hi @dsl225

Thanks for response and additional information!

WHen “Prevent page caching on form pages” option is enabled, Forminator set’s “DONOTCACHE” constant (“define”) which is quite a common and “standard” way of preventing given site form being cached. But if the malfunction is caused by Forminator resources being cached then this would be a differen thing.

The 10 hours lifespan should be fine as it’s actually related to WordPress itself rather than Forminator (Forminator uses core WP functions to generate nonces) so if it indeed helps, it should be fine.

It should also help using Ajax to load form instead but I understand there’s a reason for not using it.

I can’t, however, replicate that behavior too on my end, even with your settings. Maybe there’s some additional/other cache involved in the equation such as e.g. CDN or server-side cache too? Are you aware of any?

Best regards,
Adam

Thanks for your feedback Adam,

So far, it seems to be working fine that way.
From what I understand, the main cause of such issues is the combination of preloading and low traffic sites. Caches and preloads are not generated the same way apparently.

No, I don’t recall any particular reason for not enabling Ajax, maybe I did that some time ago for preventing similar issues but I don’t really know why…
Would you recommend enabling it?
What would be the reason not using this?

And yes, I use a CDN that works fine and is connected by the cache plugin but no server side caching that I know.

It’s difficult to narrow down when the issue really started but as soon as I was aware of it I tested different options and it was always solved instantly by clearing the cache. So, at this point, it makes some sense that enabling this scheduled nonce cache deletion works indeed.

Hi @dsl225

Thanks for response!

Yes, it’s very likely “combination of preloading and low traffic sites”, as you said.

As for Ajax. In general, Ajax surely gives “nicer” end-user experience and it also helps lower the number of requests made to the server (few Ajax requests vs entire page’s requests if for some reason browser cache expires/is wiped out) and it often helps to actually “overcome” page caching. So it can be beneficial.

There are exceptions though but that’s individual. Some just prefer the page to be reloaded, sometimes using Ajax causes conflicts or is blocked due to some strange security rules, hence you can disable it.

But all in all, if it seems to be working now, I wouldn’t make any changes and just keep an eye on it. If it turns out that your setting solved the problem, I’d say it’s fine and there’s no need to experiment. But if you see that issue goes back then yes – try Ajax and see if that sorts it out.

Best regards,
Adam

Thanks Adam, well noted.

Same issues. Tried to disable it now. And see if it works. ??

Hi @conversiewebsite

I hope you are doing well.

In case the issue persists, feel free to create a new topic and we can take a closer look.

Best Regards
Patrick Freitas