browsermob-proxy returns zero data on MacOS

[alex4200]

I am using a MacBook Air with osX 10.13.5, prowsermob-proxy 2.1.4 (python part 0.8.0), selenium 3.13.0, firefox 61.0.1 and python 2.7.10, and I am trying to run essentially the example given on the python implementation repo here:

from browsermobproxy import Server
server = Server(path="./browsermob-proxy-2.1.4/bin/browsermob-proxy")

server.start()
proxy = server.create_proxy()

from selenium import webdriver
profile  = webdriver.FirefoxProfile()
profile.set_proxy(proxy.selenium_proxy())
driver = webdriver.Firefox(firefox_profile=profile)


proxy.new_har("google")
driver.get("http://www.google.co.uk")
print(proxy.har) # returns a HAR JSON blob

server.stop()
driver.quit()

However, printing the proxy.har does not see to work. I get the following error

Traceback (most recent call last):
  File "example.py", line 16, in <module>
    print(proxy.har) # returns a HAR JSON blob
  File "/Users/adietz/Work/20_BSP/Jenkins/Invest/Browsermobproxy/venv_mac/lib/python2.7/site-packages/browsermobproxy/client.py", line 104, in har
    return r.json()
  File "/Users/adietz/Work/20_BSP/Jenkins/Invest/Browsermobproxy/venv_mac/lib/python2.7/site-packages/requests/models.py", line 896, in json
    return complexjson.loads(self.text, **kwargs)
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/json/__init__.py", line 338, in loads
    return _default_decoder.decode(s)
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/json/decoder.py", line 366, in decode
    obj, end = self.raw_decode(s, idx=_w(s, 0).end())
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/json/decoder.py", line 384, in raw_decode
    raise ValueError("No JSON object could be decoded")
ValueError: No JSON object could be decoded

Upon further investigation I can confirm that the returned text from the request (from browsermob-proxy) has zero length. It must be a bug in browsermob-proxy as the python implementation (the exact same code) works perfectly fine in a Linux environment (e.g. Ubuntu).

I also tried with different versions of browsermob-proxy (2.1.2, 2.1.3 and 2.1.4), but got the same error in each case.

I appreciate if that bug can be fixed...

[Jaselin1998]

I am facing with the same issue right now... Have you come across any solution?

[kenjke]

Same issue here, does anyone have a workaround?

[LookOnTheBrightSide]

What worked for me was to downgrade java version to java11. I used jenv to install and manage multiple java versions.