AttributeError: 'Request' object has no attribute 'is_xhr'

[Stefan-Chonov-zz]

When run:

.\rupture --sniffer

I received next error message:

[*] Sniffer has been deployed.
WARNING: No route found for IPv6 destination :: (no default route?)
2020-04-26 14:26:11,755 - werkzeug - INFO:  * Running on http://127.0.0.1:9000/ (Press CTRL+C to quit)
2020-04-26 14:26:11,756 - werkzeug - INFO:  * Restarting with stat
WARNING: No route found for IPv6 destination :: (no default route?)
2020-04-26 14:26:11,945 - werkzeug - WARNING:  * Debugger is active!
2020-04-26 14:26:11,945 - werkzeug - INFO:  * Debugger PIN: 838-428-066
Acquiring lock to start _recording
2020-04-26 14:26:15,726 - sniffer - DEBUG: Acquiring lock to start _recording
Lock acquired, starting recording
2020-04-26 14:26:15,726 - sniffer - DEBUG: Lock acquired, starting recording
Releasing lock from start _recording
2020-04-26 14:26:15,727 - sniffer - DEBUG: Releasing lock from start _recording
Sniffer (source_ip: 192.168.1.105, destination_host: www.example.com) is alive.
2020-04-26 14:26:15,727 - sniffer - DEBUG: Sniffer (source_ip: 192.168.1.105, destination_host: www.example.com) is alive.
Waiting for calibration: 0.0 seconds...
2020-04-26 14:26:15,727 - sniffer - DEBUG: Waiting for calibration: 0.0 seconds...
2020-04-26 14:26:15,730 - werkzeug - INFO: 127.0.0.1 - - [26/Apr/2020 14:26:15] "POST /start HTTP/1.1" 201 -
Parsing captured TLS streams
2020-04-26 14:26:17,794 - sniffer - DEBUG: Parsing captured TLS streams
Captured 0 application data
2020-04-26 14:26:17,794 - sniffer - DEBUG: Captured 0 application data
Captured 0 application records
2020-04-26 14:26:17,795 - sniffer - DEBUG: Captured 0 application records
Got capture with length: 0
2020-04-26 14:26:17,795 - sniffer - DEBUG: Got capture with length: 0
2020-04-26 14:26:17,806 - werkzeug - INFO: 127.0.0.1 - - [26/Apr/2020 14:26:17] "GET /read?interface=eth0&calibration_wait=0.0&destination_port=443&source_ip=192.168.1.105&destination_host=www.example.com HTTP/1.1" 500 -
Traceback (most recent call last):
  File "/home/seeff00/htp/rupture/sniffer/env/lib/python2.7/site-packages/flask/app.py", line 1836, in __call__
    return self.wsgi_app(environ, start_response)
  File "/home/seeff00/htp/rupture/sniffer/env/lib/python2.7/site-packages/flask/app.py", line 1820, in wsgi_app
    response = self.make_response(self.handle_exception(e))
  File "/home/seeff00/htp/rupture/sniffer/env/lib/python2.7/site-packages/flask/app.py", line 1403, in handle_exception
    reraise(exc_type, exc_value, tb)
  File "/home/seeff00/htp/rupture/sniffer/env/lib/python2.7/site-packages/flask/app.py", line 1817, in wsgi_app
    response = self.full_dispatch_request()
  File "/home/seeff00/htp/rupture/sniffer/env/lib/python2.7/site-packages/flask/app.py", line 1477, in full_dispatch_request
    rv = self.handle_user_exception(e)
  File "/home/seeff00/htp/rupture/sniffer/env/lib/python2.7/site-packages/flask/app.py", line 1381, in handle_user_exception
    reraise(exc_type, exc_value, tb)
  File "/home/seeff00/htp/rupture/sniffer/env/lib/python2.7/site-packages/flask/app.py", line 1475, in full_dispatch_request
    rv = self.dispatch_request()
  File "/home/seeff00/htp/rupture/sniffer/env/lib/python2.7/site-packages/flask/app.py", line 1461, in dispatch_request
    return self.view_functions[rule.endpoint](**req.view_args)
  File "/home/seeff00/htp/rupture/sniffer/app.py", line 129, in read
    return jsonify(**capture), 200
  File "/home/seeff00/htp/rupture/sniffer/env/lib/python2.7/site-packages/flask/json.py", line 235, in jsonify
    and not request.is_xhr:
  File "/home/seeff00/htp/rupture/sniffer/env/lib/python2.7/site-packages/werkzeug/local.py", line 347, in __getattr__
    return getattr(self._get_current_object(), name)
AttributeError: 'Request' object has no attribute 'is_xhr'
409 - Sniffer (source_ip: 192.168.1.105, destination_host: www.example.com) already exists.
2020-04-26 14:26:17,871 - sniffer - WARNING: 409 - Sniffer (source_ip: 192.168.1.105, destination_host: www.example.com) already exists.
2020-04-26 14:26:17,872 - werkzeug - INFO: 127.0.0.1 - - [26/Apr/2020 14:26:17] "POST /start HTTP/1.1" 409 -
Deleting sniffer (source_ip : 192.168.1.105, destination_host: www.example.com)...
2020-04-26 14:26:17,874 - sniffer - DEBUG: Deleting sniffer (source_ip : 192.168.1.105, destination_host: www.example.com)...
Acquiring lock to stop recording
2020-04-26 14:26:17,874 - sniffer - DEBUG: Acquiring lock to stop recording
Lock acquired, stopping recording
2020-04-26 14:26:17,874 - sniffer - DEBUG: Lock acquired, stopping recording
Releasing lock from stop recording
2020-04-26 14:26:17,874 - sniffer - DEBUG: Releasing lock from stop recording
(delete) Sniffer (source_ip : 192.168.1.105, destination_host: www.example.com) was deleted.
2020-04-26 14:26:17,874 - sniffer - DEBUG: (delete) Sniffer (source_ip : 192.168.1.105, destination_host: www.example.com) was deleted.
2020-04-26 14:26:17,875 - werkzeug - INFO: 127.0.0.1 - - [26/Apr/2020 14:26:17] "POST /delete HTTP/1.1" 200 -