fix and test: clear "www." cache too

[artoonie]

No description provided.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 96.75%. Comparing base (dfc88af) to head (d8f832d).
Report is 24 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #503   +/-   ##
=======================================
  Coverage   96.74%   96.75%           
=======================================
  Files         121      121           
  Lines        5784     5798   +14     
=======================================
+ Hits         5596     5610   +14     
  Misses        188      188           

Files with missing lines	Coverage Δ
common/cloudflare.py	97.50% <100.00%> (+0.35%)	⬆️
electionpage/tests.py	100.00% <100.00%> (ø)
visualizer/tests/testRestApi.py	98.52% <100.00%> (+0.05%)	⬆️
visualizer/tests/testSimple.py	100.00% <100.00%> (ø)

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