滑动时候警告[Intervention] Unable to preventDefault inside passive event listener due to target being trea

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1.滑动时候警告[Intervention] Unable to preventDefault inside passive event listener due to target being treated as passive.

2.解决方案

解决办法1：

在touch的事件监听方法上绑定第三个参数{ passive: false }，
通过传递 passive 为 false 来明确告诉浏览器：事件处理程序调用 preventDefault 来阻止默认滑动行为。

elem.addEventListener('touchstart',fn,{ passive: false }
);

解决办法2：

 * { touch-action: pan-y; } // 使用全局样式样式去掉

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