[whatwg] keepalive attribute on iframe

Ojan Vafai ojan at chromium.org
Thu Apr 12 12:41:15 PDT 2012

I thought the issue here was with moving iframes across documents, not with
keeping disconnected iframes alive. I'll ping the engineers working on this
and see if I can get more information.

On Thu, Apr 12, 2012 at 12:37 PM, Adam Barth <w3c at adambarth.com> wrote:

> We just got finished removing this feature from WebKit because it
> caused many security and stability problems.  It turns out that
> there's a lot of code in browsers that can't cope with a disconnected
> iframe being alive.
> Adam
> On Thu, Apr 12, 2012 at 12:35 PM, Ojan Vafai <ojan at chromium.org> wrote:
> > We should add a keepalive attribute to iframes that prevents iframes from
> > being unloaded/reloaded when removed from or appended to a document.
> > Similarly, a disconnected iframe with keepalive should load. If the
> > keepalive attribute is removed from a disconnected iframe, then it should
> > unload.
> >
> > I'm not terribly happy with the name 'keepalive', but I can't think of
> > anything better at the moment.
> >
> > As iframes increasingly become the standard way of achieving certain
> tasks
> > (e.g. sandboxing), it's increasingly important to be able to move them
> > around in the DOM. Right now, to achieve this sort of keepalive behavior,
> > you have to keep the iframe always appended to the document and position
> it
> > absolutely as the document changes.
> >
> > Ojan

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