Header Ad Placeholder doesn't get blocked on "arstechnica.com"

[Cleveho]

Description

The Header ad of arstechnica.com doesn't get blocked even in aggressive mode.

Steps to Reproduce

1. Open Brave
2. Set Tracker & Ads Blocking to "Aggressive" - brave://settings/shields
3. Visit - https://arstechnica.com/
4. Header ad Placeholder still doesn't get blocked.

Actual result:

Ad Placeholder doesn't get removed automatically in Aggressive mode.

Desktop :

Android Phone :

Expected result:

Ad Placeholder should be removed automatically in Aggressive mode.

Reproduces how often:

Easily reproduced

Desktop Brave version:

Brave 1.36.109 Chromium: 99.0.4844.51 (Official Build) (64-bit)
Revision d537ec02474b5afe23684e7963d538896c63ac77-refs/branch-heads/4844@{#875}
OS Windows 11 Version 21H2 (Build 22000.493)

Android Device details:

• Install type (ARM, x86): ARM 64
• Device type (Phone, Tablet, Phablet): Phone
• Android version: 11

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? No
• Does the issue resolve itself when disabling Brave Rewards? No
• Is the issue reproducible on the latest version of Chrome? No

Sites Also Affected:
https://www.bhaskar.com/
Screenshot -

https://www.forbes.com/
Screenshot -