This code exploits the Magellan bug on 64-bit Chrome, on all versions of Ubuntu.
The exploit is built for Chrome version v70.0.3538.77 from the Stable Release.
In order to demonstrate popping the calculator, Chrome should be run on the command-line with the --no-sandbox flag.
Afterwards, open test_poc.html and press the GO button.
If the exploit fails, re-run the exploit on a new tab. Ways to improve reliability is discussed in the blog post.