Opened 6 years ago

Closed 6 years ago

#486 closed defect (rejected)

safari does not block youtube preroll ads in video fullscreen mode

Reported by: philll Assignee:
Priority: P2 Milestone:
Module: Platform Keywords:
Cc: Blocked By:
Blocking: Platform:
Ready: yes Confidential: no
Tester: Verified working: no
Review URL(s):



Mac OS 10.9.2
Safari 7.0.3
ABP with Easylist & Easylist Germany

How to reproduce

  1. Go to
  2. Click the video player's full screen button
  3. In the left upper corner, change to some other videos of the playlist

Observed behaviour

Preroll ads are displayed. Report taken from

Expected behaviour

As in non-fullscreen mode or other browsers, the selected video should start playing.

Change History (1)

comment:1 Changed 6 years ago by sebastian

  • Resolution set to rejected
  • Status changed from new to closed

There is nothing we can do here. YouTube starts playing the next video, without navigating to the page of that video, while in fullscreen. So no new player is initialized with flashvars. Instead the existing player is told via JavaScript which video and which ads to show. Unlike with flashvars given in the HTML, there is no way to manipulate this configuration.

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