I can't understand how the file download mechanism works. My problem is that it is missing the header CORS 'Access-Control-Allow-Origin'. I don't know where I have to put it. Is there a tutorial that explains how to use it? My code:
const downloadFile = filePathStorage => {
storage.ref().child(filePathStorage).getDownloadURL()
.then(url => {
var xhr = new XMLHttpRequest();
xhr.responseType = "blob";
xhr.onload = function(event) {
var blob = xhr.response;
}
xhr.open("GET", url);
xhr.send();
})
.catch(err => {
console.log("download file error: " + JSON.stringify(err))
message.error("Se produjo un error. Por favor, vuelva a intentarlo.")
})
}