1510589 - Missing social media icons from people.neilon.software while Tracking Protection Basic is enabled

Status: RESOLVED INVALID

(Core :: Privacy: Anti-Tracking, defect, P3)

Description

[Oana Arbuzov [:oanaarbuzov]]

Attachment: Screenshot_3.jpg

[Environment:]
Browser / Version: Firefox Nightly 65.0a1 (2018-11-27) 
Operating System: Windows 10 Pro

[Prerequisites:]
    1. Tracking Protection Basic enabled (Custom > Tracker in all windows > Basic Block List).
[Steps to Reproduce:]
    1. Navigate to https://people.neilon.software/ 
    2. Observe top right side bar.
       
[Expected Behavior:]
Social media icons are displayed.
 
[Actual Behavior:]
Social media icons are not displayed.

Comment 1

[Oana Arbuzov [:oanaarbuzov]]

The issue is related to `Tracking protection` breakage.

Looking at the devtools console, here are the blocked resources:
The resource at “https://s7.addthis.com/js/300/addthis_widget.js#pubid=ra-5be4bc3d495c0d0f” was blocked because content blocking is enabled.
The resource at “https://www.googletagmanager.com/gtag/js?id=UA-124578174-2” was blocked because content blocking is enabled.

So below are the domains to test:
- ​s7.addthis.com
- ​www.googletagmanager.com

I opened the URL in a fresh browser profile (Firefox Nightly 65, uMatrix installed, normal mode) and loaded the page. Social media are not displayed.

I disabled the Spoof Referrer option in uMatrix and then WHITELISTED:
- addthis.com (including all related domains)
- addthisedge.com(including all related domains)
and social media are displayed.

The other resources didn't help. 

So in conclusion:
- addthis.com is in Social category = [tp-social]
- addthisedge.com is in Social category = [tp-social]

Comment 2

[Oana Arbuzov [:oanaarbuzov]]

Attachment: uMatrixResults.jpg

Added uMatrix results.

Comment 3

[Thomas Wisniewski [:twisniewski]]

I don't see any social media icons on their page, even with blocking disabled and on other browsers, so I think this is not an issue here anymore.

Comment 4

[Thomas Wisniewski [:twisniewski]]

Revisiting this, I now see social media icons except in Strict mode. The site is using AddThis.

Comment 5

[Karl Dubost💡 :karlcow]

Needs Triage.

Comment 6

[Raul Bucata]

Attachment: Screenshot_16.png

Comment 7

[Raul Bucata]

The issue is now reproducible with ETP set to STRICT, but works as expected with ETP set to STANDARD

Moving this to the correct Core/Component

Tested with:

Browser / Version: Firefox Nightly 92.0a1 (2021-07-20) (64-bit)
Operating System: Windows 10 PRO x64

Comment 8

[Oana Arbuzov [:oanaarbuzov]]

Social media icons were fully removed from the page.
https://prnt.sc/mKbabfwsrw1u

Tested with:
Browser / Version: Firefox Nightly 106.0a1 (2022-08-23), Chrome 104.0.5112.102
Operating System: Windows 10 Pro