Can Postman or Chrome display REST streaming output?

I have a REST server that is supposed to send plain text output as a stream, but when I perform the REST call with Postman or Chrome I get the whole output at once at the end of the process instead of getting a stream.

Here is my REST server, inspired from this article:

@GET@Path("/stream-test")@Produces(MediaType.TEXT_PLAIN)public Response streamTest(){  StreamingOutput stream = new StreamingOutput() {    @Override    public void write(OutputStream os) throws IOException, WebApplicationException {      Writer writer = new BufferedWriter(new OutputStreamWriter(os));      for (int i=1; i<=10; i++) {        writer.write("output " + i +" \n");        try {          Thread.sleep(500);        } catch (InterruptedException e) {          e.printStackTrace();        }      }      writer.flush();    }  };  return Response.ok(stream).build();}

The output lines are all displayed at the same time. I would like to see an output each 500msec.

Is there something wrong with my implementation ?

Or are Postman and Chrome unable to display streaming outputs ?

Note: for technical reasons I still use Postman as a Chrome app.