CallMethodException: calling method: Page.printToPDF error: PrintToPDF is not implemented

[fpom]

I try to use tab.Page.printToPDF() but it fails complaining its not implemented:

>>> import pychrome                                                         
>>> browser = pychrome.Browser(url="http://127.0.0.1:9222")                 
>>> tab = browser.new_tab()                                                 
>>> tab.start()                                                             
True
>>> tab.Page.navigate(url="file:///home/franck/Desktop/svg/hello.svg")      
{'frameId': '6AB6826A1AD497075326A65B53088ACD',
 'loaderId': '1044382648C5CBD3CA18C80DFABA79B2'}
>>> tab.Page.printToPDF()                                                   
/home/franck/.anaconda3/lib/python3.7/site-packages/pychrome/tab.py:176: UserWarning: Page.printToPDF error: PrintToPDF is not implemented
  warnings.warn("%s error: %s" % (_method, result['error']['message']))
---------------------------------------------------------------------------
CallMethodException                       Traceback (most recent call last)
<ipython-input-6-077e1649bd93> in <module>
----> 1 tab.Page.printToPDF()

~/.anaconda3/lib/python3.7/site-packages/pychrome/tab.py in call_method(self, _method, *args, **kwargs)
    175         if 'result' not in result and 'error' in result:
    176             warnings.warn("%s error: %s" % (_method, result['error']['message']))
--> 177             raise CallMethodException("calling method: %s error: %s" % (_method, result['error']['message']))
    178 
    179         return result['result']

CallMethodException: calling method: Page.printToPDF error: PrintToPDF is not implemented

I have Python 3.7.4, and installed pychrome 0.2.3 from the git repo. I've had this error for both google-chrome and chromium, using Linux.

Thanks for your help!

[fate0]

enable chrome headless mode