Title: Captcha with error Last modified: October 10, 2020 --- # Captcha with error * Resolved [Rodrigo](https://wordpress.org/support/users/vejapixel/) * (@vejapixel) * [5 years, 8 months ago](https://wordpress.org/support/topic/captcha-with-error/) * Hello guys, * I have activated Captcha to avoid spam comments as they were frequent. * But I received complaints from users trying to comment but can’t. * I did a test trying to comment (without being logged in), and the Captcha is really in trouble. I enter the data, type the mathematical result, but when I click on comment I’m redirected to the /wp-comments-post.php page with the message saying that I typed the wrong Captcha, but it’s correct: [https://prnt.sc/uwhi3s](https://prnt.sc/uwhi3s) * So, I refresh the page, but I realized that the mathematical code doesn’t change. For example, Captcha shows me the mathematical calculation of 6 + 10, ([https://prnt.sc/uwhlcf](https://prnt.sc/uwhlcf)), so I type 16, but it shows me an error as I informed above. So I refresh the page and it still shows 6 + 10. I force the browser update with Ctrl + F5, however, it still shows 6 + 10. I clear the cache, and it still shows 6 + 10. * Do you know tell me what’s going on? * Thank you! Viewing 6 replies - 1 through 6 (of 6 total) * Plugin Contributor [mbrsolution](https://wordpress.org/support/users/mbrsolution/) * (@mbrsolution) * [5 years, 8 months ago](https://wordpress.org/support/topic/captcha-with-error/#post-13516534) * Hi, do you have a cache plugin installed in your site? Or do you have a cache system running in your server? If you do and you don’t configure them properly they can cause this type of issue. * Thank you * Thread Starter [Rodrigo](https://wordpress.org/support/users/vejapixel/) * (@vejapixel) * [5 years, 8 months ago](https://wordpress.org/support/topic/captcha-with-error/#post-13517226) * Yes, I have the WP-Rocket plugin. I cleared the cache via WP-Rocket and the numerical calculation was updated. * What should the WP-Rocket configuration be like for it to work correctly as the captcha for All In One WP Security? * Plugin Contributor [mbrsolution](https://wordpress.org/support/users/mbrsolution/) * (@mbrsolution) * [5 years, 8 months ago](https://wordpress.org/support/topic/captcha-with-error/#post-13518007) * Hi, * Unfortunately I don’t use WP-Rocket cache plugin. You will have to work out what exclusion you have to add to your cache plugin in order for our captcha to work correctly. * Let me know when you find out the solution. You might also like to share it here for others who might run into the same issue as you. * Thank you * Thread Starter [Rodrigo](https://wordpress.org/support/users/vejapixel/) * (@vejapixel) * [5 years, 8 months ago](https://wordpress.org/support/topic/captcha-with-error/#post-13520066) * I checked with the WP-Rocket team and they reported that your captcha will not be able to work with WP-Rocket because the captcha loads oem php on the page instead of javascript. * See their answer: * > I am sorry about the issue! > It looks like this captcha is not compatible with page caching. > It seems to be using PHP code to generate the captcha for each page load, rather > than JavaScript. It prints the result in the HTML that is being cached. You > can see the screenshot of the source code here: [https://jmp.sh/OyWhaE4](https://jmp.sh/OyWhaE4) > > At this point, the cache has to be cleared so that captcha can be updated again. > It would need to use JavaScript in order to be compatible with page caching. > You may consider using some other solution, like, for example, Google reCaptcha. > There is also an Invisible reCaptcha solution that my teammates shared with > our customers before. It should also be fully compatible with caching: > [https://developers.google.com/recaptcha/docs/invisible](https://developers.google.com/recaptcha/docs/invisible) * Plugin Contributor [mbrsolution](https://wordpress.org/support/users/mbrsolution/) * (@mbrsolution) * [5 years, 8 months ago](https://wordpress.org/support/topic/captcha-with-error/#post-13520491) * Hi, thank you for providing more information. I have submitted a message to the developers to investigate further your issue. * Thank you * Thread Starter [Rodrigo](https://wordpress.org/support/users/vejapixel/) * (@vejapixel) * [5 years, 8 months ago](https://wordpress.org/support/topic/captcha-with-error/#post-13523447) * Thanks for listening! Viewing 6 replies - 1 through 6 (of 6 total) The topic ‘Captcha with error’ is closed to new replies. * ![](https://ps.w.org/all-in-one-wp-security-and-firewall/assets/icon-256x256. png?rev=2798307) * [All-In-One Security (AIOS) – Security and Firewall](https://wordpress.org/plugins/all-in-one-wp-security-and-firewall/) * [Frequently Asked Questions](https://wordpress.org/plugins/all-in-one-wp-security-and-firewall/#faq) * [Support Threads](https://wordpress.org/support/plugin/all-in-one-wp-security-and-firewall/) * [Active Topics](https://wordpress.org/support/plugin/all-in-one-wp-security-and-firewall/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/all-in-one-wp-security-and-firewall/unresolved/) * [Reviews](https://wordpress.org/support/plugin/all-in-one-wp-security-and-firewall/reviews/) * 6 replies * 2 participants * Last reply from: [Rodrigo](https://wordpress.org/support/users/vejapixel/) * Last activity: [5 years, 8 months ago](https://wordpress.org/support/topic/captcha-with-error/#post-13523447) * Status: resolved