Too many redirect error with UTF-8 characters in listing title

[Bahram Soltanirad]

Scenario

Flynax Demo site
Admin Panel:
AP>Basic settings>General
URL Transliteration -> disabled

User Interface:
Login as "dealer"
My Listings -> Edit a listing like

https://classifieds.demoflynax.com/m...oper-s-25.html

Change listing title to an UTF8 text like: تست and save
New listing address is : https://classifieds.demoflynax.com/motors/mini/cooper/تست-25.html
https://classifieds.demoflynax.com/m...#1578;-25.html
Everything seems OK
Go to https://classifieds.demoflynax.com/motors/mini/cooper/mini-cooper-s-25.html
It shows:

This page isn't working
classifieds.demoflynax.com redirects you too many times
Try clearing your cookie
ERR_TOO_MANY_REDIRECTS


The problem is solved, If clear cookie by pressing CTRL+F5 key
It seems there is something wrong with upup.sw.min.js file as a service worker from PWA plugin