1486781 - Embedded YouTube videos are not playing on buy.guildwars2.com while Tracking Protection Basic is enabled

Status: RESOLVED DUPLICATE of bug 1483201

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

Description

[Oana Arbuzov [:oanaarbuzov]]

Attachment: VideoBroken.png

[Environment:]
Browser / Version: Firefox Nightly 63.0a1 (2018-08-27)
Operating System: Windows 10 Pro

[Prerequisites:]
    1. Tracking Protection Basic enabled.
[Steps to Reproduce:]
    1. Navigate to https://buy.guildwars2.com/store?Action=html&Locale=en_IE&SiteID=gw2&cid=104%3A5%3A%3A%3A%3AGlobal%3A289%3A%3A%3A&pbPage=pathoffire&themeID=4785548100 
    2. Scroll down the page.
    3. Tap to play the video.
        
[Expected Behavior:]
Video plays.
 
[Actual Behavior:]
Video does not play.

[Note:]
Video link: https://www.youtube.com/embed/KBVpfsCOick?autoplay=1

Comment 1

[Oana Arbuzov [:oanaarbuzov]]

The issue is related to `Videos` breakage.

Looking at the devtools console, here are the blocked resources:
The resource at “https://drh.img.digitalriver.com/DRHM/Storefront/Site/gw2/cm/multimedia/css/reset-min.css” was blocked because content blocking is enabled.
The resource at “https://drh1.img.digitalriver.com/DRHM/Storefront/Site/gw2/cm/multimedia/js/qtip2/jquery.qtip.min.js?a” was blocked because content blocking is enabled.
The resource at “https://www.googletagmanager.com/gtm.js?id=GTM-KV7FT5” was blocked because content blocking is enabled.

So below are the domains to test:
- drh.img.digitalriver.com
- drh1.img.digitalriver.com
- www.googletagmanager.com

I opened the URL in a fresh browser profile (Firefox Nightly 63, uMatrix installed, normal mode) and loaded the page. It redirect to broken video placeholder.

I disabled the Spoof Referrer option in uMatrix and then WHITELISTED:
- digitalriver.com (including all related domains)
- youtube.com (including all related domains)
- googlevideo.com  (including all related domains) 
and the video plays.

The other resource (www.googletagmanager.com) didn't help. 

So in conclusion:
- digitalriver.com is in Advertising category = [tp-ads]
- youtube.com is in Content category = [tp-content]
- googlevideo.com is not listed

Comment 2

[Oana Arbuzov [:oanaarbuzov]]

Attachment: uMatrixResults.png

Added uMatrix Results.

Comment 3

[Thomas Wisniewski [:twisniewski]]

The page works fine in basic mode, but is utterly broken in strict mode due to Digital River's custom jQuery/buttons not being allowed to load just like in bug 1483201 (it's more than just the embedded YouTube videos).