New order - zero items in cart loop

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Bird on the Hand New Member 91 Posts	Posted - 03/25/2023 : 03:37:14 I had a call from a customer who couldn't complete his purchase. He had got into a loop that kept saying zero items in cart although if he went back and added more he could see the number and value of items increasing on the summary screen after adding another item. I managed to replicate this by selecting a product, selecting options then pressing the checkout button at the top right before selecting "add to cart" Ecommerce Plus PHP v7.4.11 I see there is an update available. Has this been fixed. feel free to try it on product https://www.birdonthehand.co.uk/proddetail.php?prod=falconryadven
Vince Administrator 42466 Posts	Posted - 03/26/2023 : 06:08:01 Hi there Looking at the headers it seems that there is caching on the cart page as here... http://tools.seobook.com/server-header-checker/?url=https%3A%2F%2Fwww.birdonthehand.co.uk%2Fcart.php&useragent=8&protocol=11 Cache-Control: max-age=2482, What I did to test this was add products to the cart and I see nothing on the cart page. But then if I add a parameter to the query string it makes the browser believe that it's a different page so doesn't use the cache... https://www.birdonthehand.co.uk/cart.php?a=1 Now I can see the cart items. Could you get in touch with your host and see if they can sort this out for you? Vince Click Here for Shopping Cart Software Click Here to sign up for our newsletter Click Here for the latest updater
Bird on the Hand New Member 91 Posts	Posted - 03/26/2023 : 06:42:37 I wondered if it was cache - we have just started using w3 total cache They have an option: Never cache the following pages: wp-.\.php index\.php proddetail\.php >>> Ihave added the last two. /.proddetail.* Always ignore the specified pages / directories. Supports regular expressions (See FAQ) I have purged the cache and tested. first time through it is ok, closed the tab and started again and get the problem. Can you suggest a "regular expression" that will encompass all product pages or do I need to raise it with W3 Their FAQ details Examples (Never cache the following pages): Do not cache page/directory and sub pages: /directory* Do not cache pages under a directory: /directory/.+ Do not cache pages that contain specific text: /.text. Do not cache pages that is named child in directories: .+/child Do not cache any pages named child */child Note: To disable page caching of specific theme templates or plugin files you need to add define('DONOTCACHEPAGE', true); to it. I thought that your support team being so clever might just know the regular expression to use. Any suggestions I can try and test them. Thanks Andrew
Bird on the Hand New Member 91 Posts	Posted - 03/26/2023 : 06:49:44 I think I have fixed it by also adding the line cart.php to the Never cache the following pages: Thanks for your help
Vince Administrator 42466 Posts	Posted - 03/26/2023 : 09:09:08 Hi there I think that is a good step to put the cart.php page in the never cache. But really, for a dynamic website you are asking for all kinds of problems when you start caching. Maybe for amazon with the millions of hits it gets per minute it would be worth it but for most sites just set all *.php page to not cache. Vince Click Here for Shopping Cart Software Click Here to sign up for our newsletter Click Here for the latest updater
Bird on the Hand New Member 91 Posts	Posted - 03/26/2023 : 09:15:26 Hi Vince Thanks I'm not great on these regular expressions. Would .*/.php be correct?
Vince Administrator 42466 Posts	Posted - 03/29/2023 : 00:11:30 quote: I'm not great on these regular expressions. Would ./.php be correct? I think that should probably be something more like... .\.php Vince Click Here for Shopping Cart Software Click Here to sign up for our newsletter Click Here for the latest updater
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