title: A GET request from a GAS web app as if it were from a user autenticated browser (under GSuite)
body: <p>Is it possible to write under Google Apps Script a web app who performs a GET by UrlFetchApp.fetch(...) as if it were a request coming from a browser with a GSuite user correctly logged in?
  What I need is to send a GET request from my app to another GAS web app accessible only by my domain's users (GSuite).
  The main reason I need this is that the second app works on a Google Sheet visible and writable only by my staff, meanwhile the initial GET sent by the first app must be deliverable by everyone, also anonymously.</p>
  
  <p>Many thanks!</p>