1495418 - Video doesn't play on mashable.com while Tracking Protection Basic is enabled

Status: RESOLVED WORKSFORME

(Web Compatibility :: Site Reports, defect, P3)

Description

[Oana Arbuzov [:oanaarbuzov]]

Attachment: VideoDoesNotPlay.png

[Environment:]
Browser / Version: Firefox Nightly 64.0a1 (2018-09-30) 
Operating System: Windows 10 Pro

[Prerequisites:]
    1. Tracking Protection Basic enabled.
[Steps to Reproduce:]
    1. Navigate to  https://mashable.com/video/anymal-robot-dog/?utm_cid=hp-videostrip#uUBw.HpM3sq9 
    2. Observe the video.
       
[Expected Behavior:]
Video plays.
 
[Actual Behavior:]
Video doesn’t play.

Comment 1

[Oana Arbuzov [:oanaarbuzov]]

The issue is related to `Video` breakage.

Looking at the devtools console, here are the blocked resources:
The resource at “https://connect.facebook.net/en_US/sdk.js#xfbml=1&version=v2.8&appId=122071082108&status=1&cookie=1” was blocked because content blocking is enabled.
The resource at “https://cdn.adsafeprotected.com/iasPET.1.js” was blocked because content blocking is enabled.
The resource at “https://www.googletagmanager.com/gtm.js?id=GTM-MN78SWW” was blocked because content blocking is enabled.
The resource at “https://c.amazon-adsystem.com/aax2/apstag.js” was blocked because content blocking is enabled.
The resource at “https://c.evidon.com/sitenotice/660/mashable/settings.js” was blocked because content blocking is enabled.
The resource at “https://tags.bkrtx.com/js/bk-coretag.js” was blocked because content blocking is enabled.
The resource at “https://js-agent.newrelic.com/nr-spa-1071.min.js” was blocked because content blocking is enabled.
The resource at “https://cdn.krxd.net/controltag/spgdj7g8u.js” was blocked because content blocking is enabled.
The resource at “https://stats.g.doubleclick.net/dc.js” was blocked because content blocking is enabled.
The resource at “https://www.googletagservices.com/tag/js/gpt.js” was blocked because content blocking is enabled.

So below are the domains to test:
- ​connect.facebook.net
- cdn.adsafeprotected.com
- www.googletagmanager.com
- c.amazon-adsystem.com
- c.evidon.com
- tags.bkrtx.com
- js-agent.newrelic.com
- cdn.krxd.net
- stats.g.doubleclick.net
​- www.googletagservices.com

I opened the URL in a fresh browser profile (Firefox Nightly 64, uMatrix installed, normal mode) and loaded the page. The video doesn't play and a loading spinner is shown indefinitely.

I disabled the Spoof Referrer option in uMatrix and then WHITELISTED:
- jwpcdn.com (including related domains)
- indexww.com (including related domains)
- mshcdn.com (including related domains)
- jwplatform.com (including related domains)
- amazon-adsystem.com (including related domains)
and the video plays.

The other resources didn't help. 

So in conclusion:
- jwpcdn.com is not listed
- indexww.com is not listed
- mshcdn.com is not listed
- jwplatform.com is not listed
- amazon-adsystem.com is in Advertising category = [tp-ads]

Comment 2

[Oana Arbuzov [:oanaarbuzov]]

Attachment: uMatrixResults.png

Adde uMatrix results.

Comment 3

[Thomas Wisniewski [:twisniewski]]

The video now plays for me even in strict mode.