[webkit-dev] Site isolation

[Carlos Garcia Campos]

El jue, 31-07-2025 a las 11:50 -0700, Alex Christensen escribió:
> Right now most of our automated test coverage is from platform-
> specific API tests in SiteIsolation.mm, but there’s no reason why
> most of them couldn’t be translated to a platform-agnostic form.  We
> also have a decent amount of tests in http/tests/site-isolation and
> one in http/tests/contentextensions/cross-origin-content-rules.html.
>  There’s also run-webkit-tests --site-isolation that runs a test in a
> cross-site iframe with site isolation on and off and compares the
> output.
> 

That's enough.

> I’ve been working to keep as much of the site isolation
> implementation as possible in code that runs the same in all
> platforms, but drawing and compositing from different processes needs
> to be implemented by someone who knows the Linux drawing code better
> than I do.
> 

I see, I'll check what's needed for that then. Thanks!

> > On Jul 31, 2025, at 5:05 AM, Carlos Garcia Campos
> > <cgarcia at igalia.com> wrote:
> > 
> > El mar, 29-07-2025 a las 17:32 -0700, Alex Christensen via webkit-
> > dev
> > escribió:
> > > About two years have passed, and I haven’t seen any progress on
> > > site
> > > isolation on non-Cocoa platforms.  Is there anyone planning to
> > > implement such support?
> > > 
> > 
> > Yes, we are interested in implement it for WPE and GTK ports, but
> > we
> > don't really know how much effort it is. What's the current status
> > of
> > the feature in Cocoa ports? How much platform specific code is
> > required
> > to support it? Are there cross-platform layout or API test?
> > 
> > > > On Apr 15, 2023, at 3:24 AM, Fujii Hironori via webkit-dev
> > > > <webkit-dev at lists.webkit.org> wrote:
> > > > 
> > > > I created a pull request of the initial
> > > > support. https://github.com/WebKit/WebKit/pull/12723
> > > > 
> > > > BTW, It'd be nice if you have a design document, and a tracking
> > > > bug.
> > > > 
> > > > 
> > > > 2023年3月31日(金) 午前5:16 Fujii Hironori <fujii.hironori at gmail.com>:
> > > > > Windows port is using GPU process for DOM rendering and layer
> > > > > compositing.
> > > > > I will do the Windows part of the task.
> > > > > 
> > > > > On Fri, Mar 31, 2023 at 4:43 AM Alex Christensen via webkit-
> > > > > dev
> > > > > <webkit-dev at lists.webkit.org> wrote:
> > > > > > The SiteIsolation feature is beginning to work in the
> > > > > > simplest
> > > > > > of cases, but I had to do some work in the
> > > > > > Source/WebKit/Shared/RemoteLayerTree directory, which is
> > > > > > platform-specific.  Basically all the use of
> > > > > > LayerHostingContextIdentifier in that directory needs an
> > > > > > equivalent implementation for other graphics
> > > > > > implementations,
> > > > > > like in the CoordinatedGraphics directories.  There is one
> > > > > > layout test in LayoutTests/http/tests/site-isolation/basic-
> > > > > > iframe.html that is currently skipped on all non-Cocoa
> > > > > > platforms.
> > > > > > 
> > > > > > Is someone willing to collaborate to design and implement
> > > > > > the
> > > > > > feature in non-Cocoa ports?  We are in the early stages of
> > > > > > the
> > > > > > project and have a long way to go, so I imagine things will
> > > > > > continue to come up, like deciding how to implement event
> > > > > > handling and other platform dependent features.
> > > > > > 
> > > > > > Alex
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> > 
> > -- 
> > Carlos Garcia Campos

-- 
Carlos Garcia Campos
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