Progress binding is not updating while uploading

Ionic Framework ionic-v3
9

@iignatov l’ll try that tonight when I come home. Am I correct if I say the e is an event object? If so what event is it?

If you look at my onProgress function, it already recieves an event.

onProgress = (progressEvent: ProgressEvent) : void => {
        if (progressEvent.lengthComputable) {
            this.progress = Math.round((progressEvent.loaded / progressEvent.total) * 100);
            console.log("Progress: ", this.progress);
        }
    }