[whatwg] api for fullscreen()
Smylers at stripey.com
Wed Feb 3 02:04:23 PST 2010
Brian Campbell writes:
> I'm a bit concerned about when the fullscreen events and styles apply,
> though. If the page can tell whether or not the user has actually
> allowed it to enter fullscreen mode, it can refuse to display content
> until the user gives it permission to enter fullscreen mode.
Why is that a problem?
> Or even if it's not refusing to display content, it may simply not
> scale the content up to the full window if the user neglects to give
> permission for full screen.
If the user wants the content to be large, why would he withhold
As I understand it, the risk with full-screen view is that a malicous
site may spoof browser chrome, such as the URL bar, thereby tricking a
user who isn't aware the site is full-screen.
So these scenarios seem relevant:
1 A malicious site wishes to switch to full-screen view and spoof
chrome. The user hadn't asked for full-screen, so withholds
permission. The site may at this point "refuse to display content"
as you put it, but since that content's only purpose is to trick the
user, its non-display is a good thing.
2 A user wishes to display some content full-screen, so grants
permission and views it.
3 A user doesn't wish to display some content full-screen, so ignores
any attempt by the site to become full-screen, and continues to view
it normal size.
I'm struggling to come up with a scenario in which your concerns apply.
Please could you elaborate. Thanks.
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