I have a python script that uses PhantomJS with selenium webdriver to retrieve a page which works perfectly on Ubuntu, while on Mac OS X it does not get some javascript library correctly.
This is more evident on a stackoverflow webpage which has a dedicated message for it.
from selenium import webdriver
browser = webdriver.PhantomJS()
browser.get("https://stackoverflow.com")
browser.save_screenshot("so.png")
Ubuntu with PhantomJS 1.9.8:
Mac OS X with PhantomJS 2.0:
The two tests are performed on the same network and both the machines can open the webpage correctly when using a classical browser.