How can I resolve the issue with my pop up modals in Webflow's CMS Collection, where the modals are not displaying the correct information and closing one modal triggers others with the same class?
TL;DR
- Assign unique IDs or custom attributes to each modal and trigger to prevent global activation.
- Configure interactions to affect only elements within each CMS item, using Webflow's "affect only elements inside this element" option.
- Use custom attributes with optional JavaScript for dynamic control if native interactions are insufficient.
When using pop-up modals in a Webflow CMS Collection, two common issues are incorrect content display and multiple modals opening or closing at once due to shared classes.
1. Ensure Each Modal Has a Unique ID or Target
- Webflow CMS binds the same modal structure to every collection item, resulting in duplicated modal structures with identical classes.
- If the modal is triggered by a click interaction on a class, it will affect all instances with that class, not just the one clicked.
- Solution: Use unique IDs or a custom attribute like
data-modal="item-1"for each modal and trigger. You can do this using Webflow's Custom Attributes panel in the element settings.
2. Modify Your Click Triggers to Be Item-Specific
- In Webflow, interactions based on “class” targets will apply to all elements with that class.
- Instead, set the trigger to affect an element "only within this element" to limit the scope to the current CMS item container (available in the interactions panel).
- This setting ensures that only the modal within the clicked CMS item is affected.
3. Use Custom Attributes and Custom JS if Needed
If Webflow’s native interactions fall short, especially with dynamic content:
- Assign custom attributes to each trigger and modal, such as
data-modal-id="1",data-modal-id="2"etc., using dynamic CMS fields. - Add custom JavaScript (in an embed element or page settings) to open/close modals by targeting elements with specific
data-modal-idvalues. - Avoid using class-based
document.querySelectorAll('.modal')operations without filtering based on the data attribute.
4. Hide/Show Only the Current Modal
- In Webflow interactions, ensure the Hide/Show action is only applied to elements relative to the CMS item.
- Use “affect only elements inside this element” to avoid global effect across all collection items.
5. Test Modal Behavior in Preview Mode
- Webflow’s preview mode allows you to check how interactions behave dynamically.
- Be sure each modal opens the correct dynamic data and closes independently.
Summary
To fix CMS modal issues in Webflow, give each modal a unique identifier, scope interactions to individual CMS items, and avoid using global class-based triggers. Use custom attributes and optional JavaScript for precise control if needed. This will ensure each modal displays the correct content and doesn’t interfere with others.