How to prevent pull-down-to-refresh of mobile chrome

For latest versions of Chrome:

html,
body {
    overscroll-behavior-y: contain;
}

Old solution:

Since mobile Chrome >= 56 event listeners are passive by default and passive event listeners can’t prevent defaults anymore.
See here
You have to use active event listeners instead like so:

document.addEventListener('touchstart', touchstartHandler, {passive: false});
document.addEventListener('touchmove', touchmoveHandler, {passive: false});