Is there an alternative for File() constructor for Safari and IE?

Question

I am using the File() constructor for creating file object for uploading a blob file to the server. The following code works fine for Chrome, but fails for Safari and Intern

Answer 1

If you can use ES6 classes:

class CustomFile extends Blob
{
    constructor(blobParts, filename, options) {
        super(blobParts, options);
        this.name = filename || "";
        if(options) {
          this.lastModified = options.lastModified;
        }
    }

    lastModified = 0;
    name = "";
}
const blob = new Blob();
const fileObject = new CustomFile([blob],"myfile");

console.log(fileObject);