Chrome console error: Unable to preventDefault inside passive event listener

singmajesty · May 15, 2019, 10:22pm

Is this the library you are looking for?

gblazex/smoothscroll-for-websites/blob/master/SmoothScroll.js#L380


    // delta is 120 most of the time
    // synaptics seems to send 1 sometimes
    if (Math.abs(deltaX) > 1.2) {
        deltaX *= options.stepSize / 120;
    }
    if (Math.abs(deltaY) > 1.2) {
        deltaY *= options.stepSize / 120;
    }
    
    scrollArray(overflowing, deltaX, deltaY);
    event.preventDefault();
    scheduleClearCache();
}


/**
 * Keydown event handler.
 * @param {Object} event
 */
function keydown(event) {


    var target   = event.target;

EDIT

This latest version of the library looks like it may have a fix for the passive event listener issue:

github.com

gblazex/smoothscroll-for-websites/blob/master/SmoothScroll.js#L746-L755


var supportsPassive = false;
try {
  window.addEventListener("test", null, Object.defineProperty({}, 'passive', {
    get: function () {
            supportsPassive = true;
        } 
    }));
} catch(e) {}


var wheelOpt = supportsPassive ? { passive: false } : false;