Why is the HTML received by the GoogleScript HtmlService not being printed from the phone?

Question

Google Apps Script

Hello!
Given:

• Google sheet
  
• Google Script written for this Google Sheet
  
• doGet() function in this script
  
• Some HTML generated by the doGet function.
  

Do:
Print this HTML from the mobile phone's browser. iPhone phone, Safari and Google Chrome browsers.

Problem:
When I try to print, my content is not displayed, only the top Google banner is visible with the message This application was created by another user, not by Google.
However, if you try to print the received content from Google Chrome on a laptop, then everything is visible and everything is printed.

Tell me, please, what is the reason for this and how to deal with it? How to achieve full printing from the phone?
Thank you!

Answer 1

https://www.youtube.com/watch?v=RJtaMJTlRhE&list=P...