[whatwg] Details on window.open
bzbarsky at MIT.EDU
Mon Oct 8 13:37:04 PDT 2012
On 10/7/12 6:32 AM, David Bruant wrote:
> 1) what are the rules for popup blockers?
Gecko uses a combination of several heuristics to block popups, based on
what sort of platform event are being processed when the window.open
call happens, how many popups are already open, which exact site the
call is on, etc.
> Is every call to window.open blocked in modern browsers or are there exceptions?
Well, onclick="window.open()" usually works.
It might be good to come up with a cross-browser list of cases like that
that content actually depends on.
> 2) About the third argument, is there a somewhat interoperable overlap
> in implementations or is it just an intricable mess?
The latter, especially across different kinds of devices and different
If you limit to desktop browsers, there's some agreement on what the
width and height of the resulting window should be... assuming it's
actually a window that opens, not a tab.
> 3) Is what is returned a instance of Window or WindowProxy?
Web page script never has direct access to a Window. Whenever you have
an object reference, it's always a WindowProxy.
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