Stage.js Error: 'Unable to preventDefault inside passive event listener invocation' - Solution Guide

This error message indicates that you are trying to call the 'preventDefault()' method inside a passive event listener, which is not allowed in modern browsers.

Passive event listeners were introduced as a performance optimization to allow developers to indicate that event listeners will not call 'preventDefault()' on the event. This allows the browser to optimize scrolling and other touch interactions.

To fix this issue, you have a few options:

1. Remove the call to 'preventDefault()': If you don't actually need to prevent the default behavior of the event, you can simply remove the call to 'preventDefault()'.

2. Use a non-passive event listener: If you do need to prevent the default behavior of the event, you can change your event listener to be non-passive by setting the 'passive' option to 'false' when adding the event listener. For example:

element.addEventListener('touchstart', eventHandler, { passive: false });

Note that changing the passive option to 'false' may impact scrolling performance.

3. Use event delegation: If you're adding event listeners to multiple elements, you can use event delegation to attach a single event listener to a parent element and listen for events on its descendants. This way, you can control the default behavior without triggering the passive event listener restriction.

parentElement.addEventListener('touchstart', function(event) {
  // Check if the target element matches your selector
  if (event.target.matches('.your-selector')) {
    event.preventDefault();
    // Handle the event
  }
});

By using one of these approaches, you should be able to resolve the 'Unable to preventDefault inside passive event listener invocation' error.