Fix CSP

[james-otten]

Firefox says we need this for some reason, I created #894 to remove it.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 94.95%. Comparing base (9a61b54) to head (ea7e6cf).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #895   +/-   ##
=======================================
  Coverage   94.95%   94.95%           
=======================================
  Files          98       98           
  Lines        4180     4180           
=======================================
  Hits         3969     3969           
  Misses        211      211           

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