How It Works
When a customer adds a bundle to cart, MOD Bundles:
Adds the bundle items to the Shopify cart via AJAX
Attempts to detect your theme and trigger the appropriate cart drawer method
Falls back through multiple methods if the initial attempt fails
The goal: Open your cart drawer and show the updated contents without a page refresh.
Cart Behavior Options
Each bundle type has settings to control what happens after adding to cart.
Setting Location
In Theme Customizer:
Go to Online Store → Themes → Edit theme
Navigate to a page with your bundle
Click on the bundle block (Mix & Match, Pack Builder, or Collection Bundle)
Find Cart Options or Cart Settings section
Available Actions
Setting | Behavior |
Open Cart Drawer (default) | Attempts to open your theme's cart drawer |
Redirect to Cart Page | Sends customer directly to /cart page |
Stay on Current Page | Does nothing—customer stays on the bundle page |
Recommendation: Start with "Open Cart Drawer". If it doesn't work with your theme, try the other options or configure Custom Cart Events.
Themes That Work Automatically
MOD Bundles includes built-in support for many popular themes. These should work without any configuration:
Shopify Free Themes
Dawn (and Dawn-based themes)
Sense
Craft
Refresh
Ride
Trade
Spotlight
Premium Themes (Verified)
Theme | Status | Notes |
Impulse | ✓ Verified | Works automatically |
Prestige | ✓ Verified | Works automatically |
Warehouse | ✓ Verified | Works automatically |
Symmetry | ✓ Verified | Works automatically |
Broadcast | ✓ Verified | Works automatically |
Motion | ✓ Verified | Works automatically |
Expanse | ✓ Verified | Works automatically |
Fetch | ✓ Verified | Works automatically |
Gem | ✓ Verified | Works automatically |
Flex | ✓ Verified | Works automatically |
Turbo | ✓ Verified | Works automatically |
Beyond | ✓ Verified | Works automatically |
Blockshop | ✓ Verified | Works automatically |
Portland | ✓ Verified | Works automatically |
Stockholm | ✓ Verified | Works automatically |
Neat | ✓ Verified | Works automatically |
Reformation | ✓ Verified | Works automatically |
Horizon | ✓ Verified | Works automatically |
Palo Alto | ✓ Verified | Works automatically |
Concept | ✓ Verified | Works automatically |
Enterprise | ✓ Verified | Works automatically |
Other Supported Themes
These themes are detected and should work, though not all are individually verified:
Ascension, Alchemy, Atelier, Athens
Baseline, Be Yours, Boost, Boundless
Canopy, Debutify, Distinctive, Dwell
Empire, Expression, Fabric, Fame
Foxpad, Genie, Habitat, Handmade
Heritage, King, Maker, Masonry
Master, Maya, Mode, Monochrome
Narrative, North, Noire, Pinnacle
Pipeline, Pitch, Plantco, Purely
Ritual, Savor, Shark, Shella
Showcase, Sleek, Starter, Starlite
Streamline, Strong, Supply, Testament
Tinker, Venue, Vessel, Vision
Yuva, Zest
When the Cart Drawer Doesn't Open
If the drawer doesn't open after adding a bundle, try these solutions in order:
Solution 1: Use Custom Cart Events
Most themes listen for specific JavaScript events to update the cart. You can tell MOD Bundles which event(s) to dispatch.
Setting: Custom Cart Events
Location: In the bundle block settings under Cart Options
Format: Comma-separated event names
Example: theme:cart:update,cart-drawer:open
Common Events by Theme Type
Theme Type | Events to Try |
Shopify 2.0 themes |
|
Dawn-based themes |
|
Impulse/Streamline |
|
Symmetry/Enterprise |
|
Expanse/Motion/Fetch |
|
Turbo |
|
Prestige/Warehouse |
|
Palo Alto |
|
Baseline |
|
Finding your theme's event:
Open your store in Chrome
Press F12 to open Developer Tools
Go to the Console tab
Add a product to cart using your theme's normal add-to-cart button
Look for any logged events or check your theme's JavaScript files
Solution 2: Redirect to Cart Page
If cart drawer integration isn't working:
In the bundle block settings
Change "After Adding to Cart" to Redirect to Cart Page
Save
This bypasses the cart drawer entirely and sends customers to the full cart page.
Solution 3: Stay on Current Page
If you don't want any automatic action:
Change "After Adding to Cart" to Stay on Current Page
Customers can manually open the cart when ready
This is useful if you have a custom cart icon that updates, or if you want customers to continue shopping.
Custom and Heavily Modified Themes
If your theme is custom-built or heavily modified, the automatic detection may not work.
Option A: Find the Cart Event
Most themes use a JavaScript event to refresh the cart drawer. Ask your developer to:
Find what event your theme listens for
Add that event to the Custom Cart Events setting
Common patterns to look for in theme JavaScript:
document.addEventListener('cart:refresh', ...)document.addEventListener('cart:updated', ...)window.addEventListener('updateCart', ...)$(document).on('cart:change', ...)Option B: Add Event Support to Your Theme
If your theme doesn't have a cart refresh event, a developer can add one.
Example implementation:
// In your theme's JavaScriptdocument.addEventListener('cart:refresh', function(event) { // Your cart drawer refresh logic here // This might involve: // - Fetching /cart.js // - Updating the drawer HTML // - Opening the drawer // Example: fetch('/cart.js') .then(response => response.json()) .then(cart => { // Update cart count document.querySelector('.cart-count').textContent = cart.item_count; // Refresh drawer contents refreshCartDrawer(cart); // Open the drawer openCartDrawer(); });});Then add cart:refresh to the Custom Cart Events setting.
Option C: Contact Us
If you've tried the above and still can't get the cart drawer working:
Contact MOD Bundles support with:
Your theme name and version Whether it's a custom theme or purchased theme Screenshots of the issue Any browser console errorsFor custom themes: Have your developer contact us. We can often provide specific guidance for your theme's cart implementation.
Multiple Events
You can specify multiple events separated by commas. All events will be dispatched.
Example: cart:refresh,theme:cart:update,cart-drawer:open
This is useful when:
Your theme needs multiple events for different updates
You're using third-party apps that also need cart notifications
You want to ensure compatibility across theme updates
Troubleshooting
Cart drawer opens but shows old contents
The drawer is opening but not refreshing. Try:
Add a refresh event before the open event:
cart:refresh,cart:openCheck if your theme has a specific refresh method
Cart drawer opens empty
The drawer opened before the cart finished updating.
This is sometimes a timing issue
Try enabling "Show Bundle Items Text in Cart" to help identify the bundle
Check for JavaScript errors in the console
"Add to Cart" button does nothing
Open browser Developer Tools (F12)
Check the Console tab for errors
Verify the bundle is properly configured with products
Try in incognito mode to rule out browser extensions
Cart count doesn't update
The cart drawer may open but the header cart count stays the same.
Most themes update this separately from the drawer
Try adding your theme's cart count update event to Custom Cart Events
The count should update on page refresh
Works on desktop but not mobile
Some themes have different cart implementations for mobile.
Check if your theme has a mobile-specific cart drawer
Try the "Redirect to Cart Page" option for mobile users
Contact your theme developer for mobile cart event names
Advanced: How Detection Works
For developers curious about the implementation, MOD Bundles uses this detection order:
Custom Events — If configured, dispatches these first
Theme Detection — Checks
window.Shopify.theme.name,window.theme.name, and DOM patternsTheme-Specific Methods — Uses known methods for detected themes
Common Selectors — Tries clicking common cart drawer triggers:
[data-cart-drawer-trigger][data-drawer-id="cart"].cart-drawer-trigger.header__icon--cart#cart-icon-bubble.js-drawer-open-cartGlobal Functions — Tries calling:
window.refreshCart()window.openCartDrawer()window.theme.cart.open()window.theme.ajaxCart.loadCart()Fallback — Opens/refreshes the element if present
Testing Your Integration
Add a bundle to cart — Complete all selections and click Add to Cart
Check drawer opens — Should slide out with bundle items
Verify contents — Bundle items should be visible (grouping varies by theme)
Check pricing — May show original price briefly, then update
Proceed to checkout — Verify discounts apply correctly
If any step fails, refer to the troubleshooting section above.

