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Re: [presentation-api] Presentations from within nested browsing contexts

From: Anssi Kostiainen via GitHub <sysbot+gh@w3.org>
Date: Thu, 04 Jun 2015 13:11:34 +0000
To: public-secondscreen@w3.org
Message-ID: <issue_comment.created-108893408-1433423493-sysbot+gh@w3.org>
Given the new information from real world usage (thanks 
@mfoltzgoogle), I suggest we keep this issue open and explore 
alternative techniques that would maintain backwards compatibility 
with existing web content without compromising the user's security and

I'll start with a couple of proposals (not necessarily good ones) to 
restart the discussion:

* Expand (or patch) the semantics of the `allowfullscreen` attribute 
to allow also the Presentation API usage in addition to the Fullscreen
 API, if set to true. Technically, the content to be presented on a 
second screen is often fullscreen. By doing this, we'd lose the 
ability to say the nested content can be made fullscreen on the 
primary screen but not shown on any of the secondary screens, and vice

* Leave it up to the implementation to ask for user's consent and make
 it explicit that nested content would like to present itself on a 
secondary screen. Would mean all the web pages with nested content out
 there could make use of the Presentation API. However, this behaviour
 would not be a testable assertion in the spec and to that end 
conformant but otherwise bad quality implementations might compromise 
users' security and privacy. Also, it may be hard to implement this in
 a way that a normal user does not get confused.

GitHub Notif of comment by anssiko
Received on Thursday, 4 June 2015 13:11:36 UTC

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