Magento customers shopping cart contents are reported to be seen by other customers. Cloudways who push varnish cache plugin by phoenix media are reluctant to help and advise me on the issue.
I sometimes see shopping carts of others whilst navigating my site.
Some say that there is a bug that if one is logged in via admin you can see customer shopping carts if you then nivigate on the frontend.
Today one of my customers reported that when trying to checkout he saw some random product of high value (£250) appear in his cart after refreshing his browser.
I am running varnish cache. Persistent shopping cart is off.
Here are my varnish cache setting
