vue 键盘空格bug

vue 键盘的空格指定有啥大病，怎么才能禁止使用它，比如说video播放，会自动绑定空格播放暂停，很烦

https://www.cnblogs.com/gitByLegend/p/10864944.html

mounted () {
    document.onkeydown = function() {
         console.log(window.event.returnValue);
         if (window.event.keyCode == 32) {
             window.event.returnValue = false;
         }
     };
}