1475536 - Design is broken on store.steampowered.com while Tracking Protection Strict is enabled

Status: RESOLVED WORKSFORME

(Web Compatibility :: Site Reports, defect, P5)

Description

[Oana Arbuzov [:oanaarbuzov]]

[Environment:]
Browser / Version: Firefox Nightly 63.0a1 (2018-07-02)
Operating System: Windows 10 Pro

[Steps to Reproduce:]
    1. Navigate to https://store.steampowered.com/app/578080/agecheck
    2. Observe the page.

[Expected Behavior:]
The page is displayed correctly.
 
[Actual Behavior:]
The design of the page is broken.

[Note:]
    1. Not reproducible with Tracking Protection basic.

Comment 1

[Oana Arbuzov [:oanaarbuzov]]

Looking at the devtools console, here are the blocked resources:
The resource at “https://steamstore-a.akamaihd.net/public/shared/images/responsive/logo_valve_footer.png” was blocked because tracking protection is enabled.
The resource at “https://steamcdn-a.akamaihd.net/steam/apps/578080/header.jpg?t=1529548706” was blocked because tracking protection is enabled.

There are two domains to test:
- steamstore-a.akamaihd.net
- steamcdn-a.akamaihd.net

I opened the URL in a new browser profile (Firefox Nightly 63, uMatrix installed, normal mode) and loaded the page. The page loads correctly.
I disabled the Spoof Referrer option in uMatrix and then blacklisted `steamstore-a.akamaihd.net` and loaded the page. I got the same layout as with Tracking Protection, except the image was still displayed.
I blacklisted `steamcdn-a.akamaihd.net` and got the broken layout.

So in conclusion:
- akamaihd.net – Content = [tp-content]

Comment 2

[Oana Arbuzov [:oanaarbuzov]]

Attachment: 42381018-7731351a-8138-11e8-8ffc-d461390ef153.png

Added uMatrix result.

Comment 3

[Firefox Bug Husbandry Bot]

Migrating Webcompat whiteboard priorities to project flags. See bug 1547409.

Comment 4

[Firefox Bug Husbandry Bot]

See bug 1547409. Migrating whiteboard priority tags to program flags.

Comment 5

[Youssef]

I am not able to reproduce. Should we close this?

Comment 6

[Thomas Wisniewski [:twisniewski]]

This is working fine now in strict mode.