How can Webflow Interactions still be triggered and work after using third party integrations like barba.js v2?

When using third-party page transition libraries like Barba.js v2, Webflow Interactions may stop working because Webflow binds its interactions only on the initial page load. You need to manually reinitialize Webflow Interactions after each Barba.js page transition.

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1. Understand the Problem

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• Webflow Interactions (legacy and IX2) are initialized on DOMContentLoaded or window.load.
• Barba.js replaces page content dynamically, preventing a full page reload, which means Webflow doesn’t detect that new elements have been added to the DOM.

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2. Reinitialize Webflow Interactions After Barba Page Loads

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• After each transition, you must manually tell Webflow to rebuild its interactions using the Webflow IX2 API.

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3. Use Webflow's IX2 Reinitialization Method

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• Add this inside the barba.hooks.afterEnter or barba.hooks.after hook in your Barba.js setup:

• For interactions to rerun: call  

    Webflow.require('ix2').init();

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• Optional (if forms/ecommerce animations also needed): you may also trigger  

    Webflow.ready();

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4. Example Integration With Barba.js v2

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Place this inside your Barba initialization:

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barba.init({
  transitions: [{
    name: 'fade-transition',
    leave(data) {
      return gsap.to(data.current.container, {opacity: 0});
    },
    enter(data) {
      return gsap.from(data.next.container, {opacity: 0});
    }
  }],
  views: [{
    namespace: 'your-namespace',
    afterEnter() {
      Webflow.require('ix2').init();
    }
  }]
});

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• Replace 'your-namespace' with the actual data-barba-namespace of your page.
• Alternatively, use barba.hooks.after(() => Webflow.require('ix2').init()); to apply it globally.

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5. Extra Notes

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• If you're loading content through CMS or other AJAX-like functionality, ensure that the DOM has fully updated before calling Webflow.require('ix2').init();.
• You can use MutationObserver or a delayed timeout to ensure stable reinit.

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Summary

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To make Webflow Interactions work with Barba.js v2, you must manually reinitialize IX2 by calling Webflow.require('ix2').init(); after each page transition completes. Use it inside barba.hooks.after() or afterEnter() in a view. This will ensure your animations and interactions are re-bound to the new DOM elements.