Web /browse failes with "'NoneType' is not iterable" in minimal.py

[hashworks]

127.0.0.1 - - [26/May/2020 13:49:56] "GET /browse HTTP/1.1" 500 -
Traceback (most recent call last):
  File "/usr/lib/python3.8/site-packages/flask/app.py", line 2464, in __call__
    return self.wsgi_app(environ, start_response)
  File "/usr/lib/python3.8/site-packages/flask/app.py", line 2450, in wsgi_app
    response = self.handle_exception(e)
  File "/usr/lib/python3.8/site-packages/flask/app.py", line 1867, in handle_exception
    reraise(exc_type, exc_value, tb)
  File "/usr/lib/python3.8/site-packages/flask/_compat.py", line 39, in reraise
    raise value
  File "/usr/lib/python3.8/site-packages/flask/app.py", line 2447, in wsgi_app
    response = self.full_dispatch_request()
  File "/usr/lib/python3.8/site-packages/flask/app.py", line 1952, in full_dispatch_request
    rv = self.handle_user_exception(e)
  File "/usr/lib/python3.8/site-packages/flask/app.py", line 1821, in handle_user_exception
    reraise(exc_type, exc_value, tb)
  File "/usr/lib/python3.8/site-packages/flask/_compat.py", line 39, in reraise
    raise value
  File "/usr/lib/python3.8/site-packages/flask/app.py", line 1950, in full_dispatch_request
    rv = self.dispatch_request()
  File "/usr/lib/python3.8/site-packages/flask/app.py", line 1936, in dispatch_request
    return self.view_functions[rule.endpoint](**req.view_args)
  File "/path/cve-search/web/minimal.py", line 140, in browse
    if 'product' in data and 'vendor' in data:
TypeError: argument of type 'NoneType' is not iterable

[hashworks]

Note: /api/browse gives null, so that might be related. In case you are asking, database was populated with:

./sbin/db_mgmt_cpe_dictionary.py -p
./sbin/db_mgmt_json.py -p
./sbin/db_updater.py -c

[hashworks]

My bad, I forgot a redis.