Website Cart issue after upgrade to leatest version

Thank you for sharing your system status report and another video demonstration.

I tested your test site again and was able to add many products with no issue, both via Ajax and on the product page. I was also able to remove any product without issue the first time.

Tested several times and was not able to replicate what I saw in either video on your test site.

I’m not sure why that is, maybe specific products have an issue that I did not see. Possibly a browser cache on your end.

I honestly don’t know what else could be causing it unless you have error logs recorded too that specifically target CoCart.

I wish I could be more helpful.

As for the REST API.

I do see that you have a must-use plugin installed that interferes with REST API in general.

Also have you checked that you are not using the cart key instead of the item key when removing items from the cart when using your app?

Thanks for your reply,

For your last question, in our test website (I recorded with), We do not use that for our mobile app, Which means it does not happen by API-call from the app.

It is possible by chance to do us a favor and make the previous version of Cocart(before the session handler) compatible with the new version of woocommerce?

I just thought it might the problem caused by the session handler and syncing problem for some users depended on browsers or internet speed, OS, …

However, thanks for taking time and consideration.

While I don’t support this you can try the following.

remove_filter( 'woocommerce_session_handler', array( 'CoCart', 'session_handler' ) );

Hope that helps but please know that guest customers will not be supported.

I just comment the line 35:
add_filter( 'woocommerce_session_handler', array( $this, 'cocart_session_handler' ) );

on class-cocart-woocommerce.php and now it seems website and app work fine.

Thanks much for your consideration.

Why didn’t you just remove the filter in your theme functions.php file or using a code snippet plugin?

Disabling the line will only prevent you from updating CoCart in the future when updates are available.

If i had something more concrete to solve your issue maybe an error log I will do my best to patch it but at this time I don’t understand why it would not work for you when testing your site but works for me.

Yes, Your code works also. I just do that.

I think the error log or something like debugs mode can be very useful.

Thanks a lot.