[webkit-changes] [WebKit/WebKit] 17d23e: `Clear-Site-Data: "cache"` HTTP header should clea...

[Chris Dumez]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 17d23e2ec51d99b28ed99a79de5e0319d23565b7
      https://github.com/WebKit/WebKit/commit/17d23e2ec51d99b28ed99a79de5e0319d23565b7
  Author: Chris Dumez <cdumez at apple.com>
  Date:   2023-02-06 (Mon, 06 Feb 2023)

  Changed paths:
    M Source/WebKit/NetworkProcess/NetworkResourceLoader.cpp
    M Source/WebKit/UIProcess/Network/NetworkProcessProxy.cpp
    M Source/WebKit/UIProcess/Network/NetworkProcessProxy.h
    M Source/WebKit/UIProcess/Network/NetworkProcessProxy.messages.in
    M Source/WebKit/UIProcess/ViewSnapshotStore.cpp
    M Source/WebKit/UIProcess/ViewSnapshotStore.h
    M Source/WebKit/WebProcess/Network/WebLoaderStrategy.cpp
    M Tools/TestWebKitAPI/Tests/WebKitCocoa/SnapshotStore.mm
    M Tools/TestWebKitAPI/cocoa/TestNavigationDelegate.h
    M Tools/TestWebKitAPI/cocoa/TestNavigationDelegate.mm
    M Tools/TestWebKitAPI/cocoa/TestWKWebView.h
    M Tools/TestWebKitAPI/cocoa/TestWKWebView.mm

  Log Message:
  -----------
  `Clear-Site-Data: "cache"` HTTP header should clear navigation snapshots
https://bugs.webkit.org/show_bug.cgi?id=251766

Reviewed by Geoffrey Garen.

`Clear-Site-Data: "cache"` HTTP header already clears the back/forward cache
but it didn't clear the navigation snapshots yet. This patch fixes this.

Since a common use case is a log out page, we shouldn't be able to see
"logged in" information when swiping back once you've logged out.

* Source/WebKit/NetworkProcess/NetworkResourceLoader.cpp:
(WebKit::NetworkResourceLoader::processClearSiteDataHeader):
* Source/WebKit/UIProcess/Network/NetworkProcessProxy.cpp:
(WebKit::NetworkProcessProxy::deleteWebsiteDataInWebProcessesForOrigin):
* Source/WebKit/UIProcess/Network/NetworkProcessProxy.h:
* Source/WebKit/UIProcess/Network/NetworkProcessProxy.messages.in:

Canonical link: https://commits.webkit.org/259936@main