fix: fix crash when cancelAnimationFrame in frame callbacks.

[andycall]

Fix app crashed when canceling animationFrame inside of frame callback in iOS devices.

Crash demo:

    const div = document.createElement('div');
    div.onclick = () => {
        let t = requestAnimationFrame(() => {
            cancelAnimationFrame(t);
            document.body.appendChild(document.createTextNode('cleared'));
        });
    };
    div.textContent = 'click';
    document.body.appendChild(div);