message: Added reset of "isUploading" status variable, so file upload can be restarted after cancellation or error
diff: @@ -58,6 +58,10 @@ export class UploadFormComponent implements OnInit, OnChanges {
  this.fileUploader = new FileUploader(uploadOptions);
  + this.fileUploader.onCancelItem = () => {
  + this.fileUploader.isUploading = false;
  + };
  +
  this.fileUploader.onBuildItemForm = (fileItem: any, form: any) => {
  form.append('data', JSON.stringify(this.additionalData))
  };
  @@ -103,6 +107,7 @@ export class UploadFormComponent implements OnInit, OnChanges {
  item.isError = false;
  item.isUploaded = false;
  this.snackBar.open(`${item._file.name} failed to upload`, 'Dismiss');
  + this.fileUploader.isUploading = false;
  };
  }
  