Persistent cart mixing between users

Hey @tii

My suggestion here would be to dig into your caching set up more, this is most likely the culprit here.

We have some support notes about caching and WooCommerce here – https://docs.woocommerce.com/document/configuring-caching-plugins/

Maybe reach out to your host? You’ll be surprised what caching they drop into sites that you don’t know about.

Thanks,

Im seeing this on multiple sites now – wondering is any more has been done here

Hi Tii,

Hmm, that’s an interesting issue – sorry that it’s happening! Have you done any plugin conflict testing to see if there’s a particular plugin or theme that’s causing the issue? I realize with the irregularity of being able to reproduce it, it’s difficult to test.

Is this only happening when customers share a browser/computer?

Hi. I don’t know if my problem is the same. But I have 2 advices at the top of wordpress and they are very annoying. They are:
1. You need to install default WooCommerce page: Cart Page.
2. You need to install default WooCommerce page: Checkout Page.
I look into my php error log and find this:
[21-Mar-2018 08:03:44 UTC] Advertencia de PHP: “carro” de desplazamiento de cadena ilegal en /home/debander/public_html/conunicornios.es/wp-content/plugins/woocommerce/includes/class-wc-cart- session.php en línea 80

[21-Mar-2018 08:03:44 UTC] Advertencia de PHP: array_merge (): El argumento # 1 no es una matriz en /home/debander/public_html/conunicornios.es/wp-content/plugins/woocommerce/includes/class -wc-cart-session.php en línea 80
I do not use my cart or my checkout page in my web. So I don’t understand WHY they are there. And they don’t have the “X” to close them. Just stay there all the time… hope anyone have a solution. Thanks!!

i actually faced same problem ….actually this problem is related to the theme cache or related to any other cache plugin…..but now i totally found the solution..
colpy these three line into yout .htaccess file on the root of the wordpress

RewriteRule ^wp-json – [E=NOCOOKIE:1]
SetEnvIf REDIRECT_NOCOOKIE 1 NOCOOKIE=1
Header always unset Set-Cookie env=NOCOOKIE

and also add this code into yours child themes function.php

add_action(‘woocommerce_before_checkout_form’, ‘dump_woocommerce_cart’);
function dump_woocommerce_cart() {
global $woocommerce;
//print_r($woocommerce->cart);
}

function d6_remove_persistent_cart($value, $id, $key) {
if ( $key == ‘_woocommerce_persistent_cart_1’) {
return false;
}
return $value;
}
add_filter(‘get_user_metadata’, ‘d6_remove_persistent_cart’, 10, 3);
add_filter(‘update_user_metadata’, ‘d6_remove_persistent_cart’, 10, 3);
add_filter(‘add_user_metadata’, ‘d6_remove_persistent_cart’, 10, 3);

this totally resolve my problem….
i hope it will help..thank you

We are experiencing the exact same problem. The following request to the API seems to mess up the woocommerce cart sessions:

function getProductInfo(){
   var url = '/wp-json/wc/v2/products/',
   auth = '?consumer_key=OUR_KEY_HERE&oauth_signature_method=HMAC-SHA1&oauth_timestamp=1458225139&oauth_nonce=nVq4rX&consumer_secret=OUR_SECRET_HERE',
   url = url + $wcId + auth;

   $.get( url, function( data ) {
      $singleProduct = data;
      setProductInfo();
      setOrderButton();
   });
}

• This reply was modified 6 years, 3 months ago by walkeezy.

We are experiencing the same issue! There seems to be a WooCommerce Core bug? Were using no caching plugins of any kind.