DDG HTML page and search results displayed incorrectly with Safest security setting

🐞 Bug Report

Reproduction steps

• with security setting "Safest" navigate to html.duckduckgo.com/html
• perform a search (e.g. using term "tor")

Expected behaviour

Both the DDG search page and search results page should render correctly

Actual behaviour

Bookkeeping

• Browser version: 14.5.7
• Browser channel:
  • [y] Release
  • Alpha
  • Nightly
• Distribution method:
  • [y] Installer/archive from torproject.org
  • tor-browser-launcher
  • homebrew
  • other (please specify):
• Operating System:
  • Windows
  • macOS
  • [y] Linux
  • Android
  • Tails
  • Other (please specify):
• Operating System Version: Linux Mint Debian Edition 6

Browser UI language

en-US

Have you modified any of the settings in about:preferences or about:config? If yes, which ones?

No

Do you have any extra extensions installed?

No

Troubleshooting

Problem seems to be CORS preventing a stylesheet load:

Does this bug occur in a fresh installation?

Yes

Is this bug new? If it is a regression, in which version of the browser did this bug first appear?

Unknown/not tested

Does this bug occur in the Alpha release channel?

No (tested with 15.0a3)

Does this bug occur in Firefox ESR (Desktop only)?

No

Does this bug occur in Firefox Rapid Release?

Unknown/not tested

Further info

Was first reported on the user forum here.

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