[webkit-dev] feature proposal: restricting window.blur/focus

Darin Fisher darin at chromium.org
Wed Apr 4 10:53:57 PDT 2012

Matching Firefox behavior likely means that we won't have to worry about
breaking sites.  We may have to worry about breaking Chrome Extensions or
other browser-specific content.


On Wed, Apr 4, 2012 at 1:31 AM, Jochen Eisinger <jochen at chromium.org> wrote:

> Hey,
> Firefox restricts the use of window.blur() and window.focus() (by
> default). window.blur() is just doing nothing, and window.focus() only
> works if the caller is running in the same window.
> Should we implement similar rules for WebKit? The purpose of this is to
> make pop-unders more difficult to achieve.
> I think this can be implemented in such a way the the chrome
> implementation which is doing the actual focusing/bluring anyway has enough
> information to let each port control what they want to do.
> wdyt?
> -jochen
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> webkit-dev at lists.webkit.org
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