Yes, I've been trying it out since this afternoon (South-EastAsia time) :P
I'm suspecting 2 factors: (I'm not quite sure, I might be sharing wrong info here in the Forums)
1) I think PA doesn't allow me to install because I am not root/Administrator or I have access denied (bottom-line is i can't run $ sudo)
When I tried running another method to install Heroku, found in their docs: $ npm install -g heroku-cli
npm ERR! Linux 4.4.0-83-generic
npm ERR! argv "node" "/usr/bin/npm" "install" "-g" "heroku-cli"
npm ERR! node v0.10.37
npm ERR! npm v4.3.0
npm ERR! path /usr/lib/node_modules
npm ERR! code EACCES
npm ERR! Error: EACCES, access '/usr/lib/node_modules'
npm ERR! at module.exports (/usr/lib/node_modules/npm/lib/install/access-error.js:4:18)
npm ERR! at /usr/lib/node_modules/npm/lib/install/writable.js:30:25
npm ERR! at /usr/lib/node_modules/npm/node_modules/graceful-fs/graceful-fs.js:241:16
npm ERR! at Object.oncomplete (fs.js:108:15)
npm ERR! { [Error: EACCES, access '/usr/lib/node_modules'] code: 'EACCES', path: '/usr/lib/node_modules' }
npm ERR!
npm ERR! Please try running this command again as root/Administrator.
npm ERR! Please include the following file with any support request:
npm ERR! /home/famasboy88/.npm/_logs/2017-11-27T14_18_13_000Z-debug.log
2) Even if I was successful in installing Heroku, I think I will run into another problem (Well, mostly on accounts within FREE PLAN like me LOLL)
I tried to test if I could pass through and test a connection $ wget "https://www.heroku.com"
Sadly....
--2017-11-27 14:36:43-- https://cli-assets.heroku.com/
Resolving proxy.server (proxy.server)... 10.0.0.202
Connecting to proxy.server (proxy.server)|10.0.0.202|:3128... connected.
Proxy tunneling failed: ForbiddenUnable to establish SSL connection.
Which is telling me that Heroku is not included in the public whitelist of PA
Anyways, feel free to point out if I made any mistakes Peace!