问在Chrome扩展中，是否可以在弹出窗口上显示屏幕？

EN

//originalURL is the bloburl from your content script
//in your popup script, call this
var request=new XMLHttpRequest();
request.open('GET', originalURL);
request.responseType='blob';
request.send();
request.onload=function(){
var newURL=URL.createObjectURL(request.response);
}
//newURL is the bloburl which can not be used on your popup script, you can set it as the soure of a video etc...

async function reissueObjectURL (url) {
    return new Promise((resolve, reject) => {
        var request = new XMLHttpRequest();
        request.open('GET', url);
        request.responseType = 'blob';
        request.onload = () => {
            resolve(URL.createObjectURL(request.response));
            URL.revokeObjectURL(url);
        };
        request.send();
    });
}