Postmortem: Fetch Test April 2020

A Fetch Test was ran in April 2020. The process to run took a little over 24 hours to complete. In result of time constraints, only entirely disabled rulesets were the focus.

Results

Full scan and amendments made in #19339, resulted in 1793 impacted rulesets, of which the majority were disabled.

After Test

After review of false positives, giving recently expired certificates a grace period for COVID-19, and re-adding onion rulesets that were turned off; it became apparent that the check_rules.py script should be amended to mitigate these false positives

@TODO #19714

Additional issues flagged https://github.com/EFForg/https-everywhere/issues/19330

New Fetch Test Rubric