How to run webpage code with PhantomJS via GhostDriver (selenium)

Question

I looking for ability render pdf with PhantomJS via GhostDriver, not just render pdf. When I use next code, then page normally loaded:

Answer 1

There is a special way to execute PhantomJS script from GhostDriver, using the next command:

POST /session/id/phantom/execute

It was included in GhostDriver v1.1.0, so it should work since PhantomJS v.1.9.6.

Look at this example:

def execute(script, args):
    driver.execute('executePhantomScript', {'script': script, 'args' : args })

driver = webdriver.PhantomJS('phantomjs')

# hack while the python interface lags
driver.command_executor._commands['executePhantomScript'] = ('POST', '/session/$sessionId/phantom/execute')

driver.get('http://stackoverflow.com')

# set page format
# inside the execution script, webpage is "this"
pageFormat = '''this.paperSize = {format: "A4", orientation: "portrait" };'''
execute(pageFormat, [])

# render current page
render = '''this.render("test.pdf")'''
execute(render, [])

Note that in OS X PhantomJS renders web page as images with not selectable text, due to limitations of Qt rendering engine in OS X (at least with PhantomJS v.1.9.8 and earlier).