False positive: Mailchimp CSS file reported as ad tracker

[tagawa]

Steps to reproduce:

1. Go to https://digitalfreedomfund.org/ in the DuckDuckGo browser/app.
2. Check the Tracker Radar blocking report.

What should happen: There should be no tracking requests reported.

What actually happens: A Mailchimp CSS file (used in a newsletter subscription form) is reported as an ad tracker. File URL: https://cdn-images.mailchimp.com/embedcode/slim-10_7.css

Environment: DuckDuckGo 0.30.6; macOS 11.7.1

[kdzwinel]

Thanks a lot Daniel! I created a task internally (cc @GuiltyDolphin ).