save response data as CSV

axios.post('/query/download', {
				familyId: this.item.id, 
				queryName: 'test',
				columnNames : this.columnNames
			})
			.then(function(response) {
			  let blob = new Blob([response.data], { type: 'text/csv' } )
			  let link = document.createElement('a')
			  link.href = window.URL.createObjectURL(blob)
			  link.download = 'test.csv'
			  link.click()

		  });