Hi Ray.
 
There are a few things you need to change.
 
You need to change this line:

config.server_port = 80;

To this:

config.server_port = 8020;

 
The following line:

bool jpeg_converted = frame2jpg(fb, 80, &_jpg_buf, &_jpg_buf_len);

To this:

bool jpeg_converted = frame2jpg(fb, 8020, &_jpg_buf, &_jpg_buf_len);

 
At this moment, the video streaming is running on the selected port(+1), followed by /stream. So it is running on the following URL:

IPaddress:8081/stream. 

So, we also need to change the source of the video to embed it on the page. 
So, change the following line:

window.onload = document.getElementById("photo").src = window.location.href.slice(0, -1) + ":81/stream";

To this:

window.onload = document.getElementById("photo").src = window.location.href.slice(0, -6) + ":8021/stream";

 
Here’s a link to the complete working code:https://gist.github.com/sarasantos/1518a2d137ef7c0500ebdbb4154c81b0
 
I hope this helps.
Regards,
Sara
 
 
 

Works fine on port 8020
but  this code only allows 1 user to view cam
Tnx

Yes, the examples provided only allow one client at a time for video streaming.
Regards,
Sara