Unblocked CNAME on https://firstlutherancc.org/

[ryanbr]

Description

Opening https://firstlutherancc.org/ shows no blocked items. (plausible cname)

Steps to Reproduce

1. Visiting https://firstlutherancc.org/ and https://markosaric.com/ showing no blocked items
2. Expecting blocked items in Dev-tools or shields

Actual result:

Expected result:

Expect plausible CNAME to be blocked

Reproduces how often:

Easily.

Brave version (brave://version info)

Version 1.21.76 Chromium: 89.0.4389.86 (Official Build) (64-bit)

Version/Channel Information:

• Can you reproduce this issue with the current release? Yes
• Can you reproduce this issue with the beta channel? Yes
• Can you reproduce this issue with the nightly channel? Yes

Other Additional Information:

• Does the issue resolve itself when disabling Brave Shields?
• Does the issue resolve itself when disabling Brave Rewards?
• Is the issue reproducible on the latest version of Chrome?

Miscellaneous Information:

@antonok-edm

From Firefox/uBO:
Non blocked item via devtools:

I have added some filters into Easyprivacy, which may affect this
easylist/easylist@136240e

and today, https://github.com/easylist/easylist/blob/master/easyprivacy/easyprivacy_specific_cname.txt#L8

[ryanbr]

While we have ||plausible.io^$third-party in Easyprivacy, I also attempted to add ||custom.plausible.io^ into brave://adblock didn't block the cname on https://firstlutherancc.org.

[antonok-edm]

Should be fixed by #14755