220116 2020-12-23 05:34:00 -0800 [GTK] Remove WebKitWebContext:process-swap-on-cross-site-navigation-enabled and ensure PSON is always enabled with GTK 4 2022-10-21 07:20:31 -0700 1 1 1 Unclassified WebKit WebKitGTK WebKit Nightly Build PC Linux RESOLVED FIXED https://bugs.webkit.org/show_bug.cgi?id=240052 P2 Normal --- 210100 1 mcatanzaro mcatanzaro bugs-noreply mcatanzaro oldest_to_newest 1716449 0 mcatanzaro 2020-12-23 05:34:00 -0800 So we don't forget: process-swap-on-cross-site-navigation-enabled should default to TRUE in the GTK 4 API, so we are secure by default. Alternatively: we could remove this setting and force it to TRUE. However, it would probably be useful to allow non-browser applications to disable it. 1866445 1 mcatanzaro 2022-05-04 08:06:40 -0700 (In reply to Michael Catanzaro from comment #0) > Alternatively: we could remove this setting and force it to TRUE. However, > it would probably be useful to allow non-browser applications to disable it. Problem is PSON might become mandatory in the future. Exposing process model details in our public API has historically not worked well for us: basically all such APIs are now deprecated and broken. It's safer in the long run to just force PSON to be on. If someone has a real good reason to disable it (e.g. small app loading only content from one security origin, want to avoid overhead of prewarming a process that will never be used) then I see the temptation to keep the setting around. But apps can break real badly if PSON is forced and they don't expect it. So I'm not sure this is a good idea. More opinions welcome. 1866488 2 mcatanzaro 2022-05-04 09:18:56 -0700 Maybe the benefit of having only one web process is worth the risk of breaking if PSON becomes forced in the future. For a small app like devhelp, you don't really want the overhead of a second prewarmed web process sitting around, when you know it will never be used. 1906222 3 mcatanzaro 2022-10-17 12:09:54 -0700 So I tested Epiphany and found it actually creates only a single web process when opened with one web view, with no prewarmed process, so I think we should just force this on always. 1906314 4 mcatanzaro 2022-10-17 16:51:09 -0700 Pull request: https://github.com/WebKit/WebKit/pull/5470 1907301 5 ews-feeder 2022-10-21 07:20:27 -0700 Committed 255825@main (94be12a42fa1): <https://commits.webkit.org/255825@main> Reviewed commits have been landed. Closing PR #5470 and removing active labels.