You add WP Simple Paypal Shopping Cart to your site. Customer adds items. Goes to checkout. Clicks back button. Cart is empty. That is frustrating because customers give up.
A common issue is that the plugin stores cart data in session. Browser back button does not restore session. Cart is lost. The plugin is not broken. Session storage is not persistent across back navigation.
Why Shopping Cart Empties on Back Button
WP Simple Paypal Shopping Cart uses PHP sessions to store cart items. When user clicks back button, browser loads cached page. Session data may not reload. Cart appears empty. Some browsers clear session on back navigation.
This is not WP Simple Paypal Shopping Cart being bad. Session storage has limitations.
The Most Common Cart Loss Scenarios
- Browser back button (most common)
- Browser close and reopen
- Session timeout (usually 30 minutes)
- Cache plugin clearing sessions
- Multiple tabs interfering with session
Each loses cart data.
How to Fix Lost Shopping Cart Items
- Go to WP Simple Paypal Shopping Cart → Settings
- Enable “Use cookies instead of sessions” option
- Set cart expiration to 7 days (not session-based)
- Enable “Return to cart after payment” (redirects, not back button)
- Disable cache for cart pages
Cookie-based cart persists longer.
How to Disable Back Button Checkout Issue
Add JavaScript to prevent back button on cart page:
history.pushState(null, null, location.href);
window.onpopstate = function () {
history.go(1);
};
This prevents back button on cart page. User stays on cart.
Alternative: Use Modern E-commerce Plugin
WP Simple Paypal Shopping Cart is outdated. Switch to WooCommerce or Easy Digital Downloads. Modern plugins use database cart storage. Never loses items. Better user experience.
Upgrade to proper e-commerce solution.
People Also Ask About Paypal Cart Problems
Why does my shopping cart empty when I click back button?
Session-based cart. Use cookie storage or upgrade to WooCommerce.
Should I stop using WP Simple Paypal Shopping Cart?
Yes. Switch to WooCommerce. Cart will persist.
Is WP Simple Paypal Shopping Cart worse than Cart66?
Both outdated. Modern e-commerce plugins are better.
Final Thoughts
If WP Simple Paypal Shopping Cart loses items on back button, enable cookie storage. Or switch to WooCommerce. Your cart will stay persistent across navigation.