chrome-extension/entrypoints/popup/pages/utils.ts

export const urlToBlob = (url: string): Promise<Blob> => {
    return new Promise((resolve, reject) => {
        const xhr = new XMLHttpRequest();
        xhr.open("GET", url, true);
        xhr.responseType = "blob";
        xhr.onload = function () {
            if (this.status === 200) {
                resolve(this.response as Blob); // 显式断言为 Blob 类型
            } else {
                reject(new Error("Error loading image"));
            }
        };
        xhr.onerror = function () {
            reject(new Error("Network error"));
        };
        xhr.send();
    });
};

export const urlToFile = async (url: string, fileName: string) => {
    console.log("urlToFile")
    return urlToBlob(url).then(blob => {
        return new File([blob], fileName, {
            type: blob.type,
            lastModified: new Date().getTime()
        });
    });
}