Recently, I came across a situation when I wanted to see the result of console.log written as a part of Postman script.
I could not see any outgoing call or console logs in a console of my chrome.
After a bit of research it is understood that there is a separate way of opening a console screen of a chrome app package.
To enable this feature you need to type
chrome://flags/#debug-packed-apps in the URL bar in your Chrome browser window:
Once it is enabled, restart your chrome. Now you can right click on the Postman app, and inspect.
Tada! You can now view console logs and any network calls going out of the Postman.