Requests from about:blank frames can be incorrectly allowlisted

Environment

  • OS version: Windows 10 20H2 (OS Build 19042.928)
  • Browser version: Chrome 90.0.4430.93
  • Extension version: (3.10.2 - Latest 2020-01 build).
  • Last working version: NA

Steps to reproduce

  1. Add the filters on the page linked by the testpages issue (#75)

Observed behavior

The image loaded in the about:blank frame is incorrectly allowlisted.

Expected behavior

The image in the about:blank frame to stay blocked, as it does not match the allowlisting filter.

Further information

This has been fixed in v3.

To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information