I created the basic Hello World app following the steps here.
But in Confluence, when I publish the page with the Hello World macro, I see the following error.
Tunnel eff87c56.ngrok.io not found
Can anyone please help with this issue?
At first glance, it seems that that the ngrok tunnel ( eff87c56.ngrok.io) is already closed. After running npm start, if it is successful, you should be able to access example.ngrok.io in your browser and your descriptor file should be shown.