file-saver saveAs : Error while opening the pdf

I am saving a pdf to my local machine, using saveAs from 'file-saver' library. Data is provided locally, it is not fetched from server.

Pdf is getting saved successfully, but while opening the pdf I am getting an error as **File type plain text document (text/plain) is not supported** though I am mentioning type as pdf.

Below is the code. I am developing the application using reactjs.

```
import { saveAs } from 'file-saver';

const blob = new Blob([ ], { type: 'application/pdf'
})

saveAs(blob, "trial.pdf" );
```
**Attatching screenshot of the error**