prefix not identified properly due to qlik sense upgrade

[pritam251]

Description

For November 2017 and versions above, prefix is not being identified properly

Steps to Reproduce

1. Start with a new session of the browser with all cache and cookies cleaned up
2. Log in to qliksense with a vProxy
3. When export is clicked, it does not identify the prefix properly

The current logic to determine the prefix is based on keyword '/sense' in the url.
This should change to '/extensions'

Current:
var prefix = window.location.pathname.substr(0, window.location.pathname.toLowerCase().lastIndexOf('/sense') + 1);

Should change to:
var prefix = window.location.pathname.substr(0, window.location.pathname.toLowerCase().lastIndexOf('/extensions') + 1);

Expected behavior

The prefix should be identified properly as expected

Environment

Chrome

Operating system

All OS

[ ] Windows
[ ] OSX
[ ] Linux

Qlik Sense

All

[ ] Desktop
[ ] Enterprise

Browser

All

[ ] Chrome
[ ] Firefox
[ ] Internet Explorer
[ ] Edge
[ ] Others: XXX

[pritam251]

I forgot to mention that this happens only in mashups.