uploadFail
fires if the file upload failed
uploadFail: (file: object, value: object[]) => void;
Parameters:
- file: object- the file object
- value: array- the current value of the control
Example
form.getItem("simpleVault").events.on("uploadFail", function(file, value) {
    console.log("uploadFail", file, value);
});
Change log:
The value parameter is added in v7.0.