315416 2026-05-23 01:26:04 -0700 [regression] Storage::traverse(const String& type, const String& partition, ...) is broken 2026-05-23 09:31:12 -0700 1 1 1 Unclassified WebKit Website Storage WebKit Nightly Build Unspecified Unspecified NEW P2 Normal --- 295249 203215 1 fred.wang fred.wang cdumez koivisto pgriffis sihui_liu oldest_to_newest 2213499 0 479784 fred.wang 2026-05-23 01:26:04 -0700 Created attachment 479784 Patch I was playing with some patches for bug 295249 and noticed this function is not working as expected. This seems to be a regression from bug 203215 (probably Clear-Site-Data: "cache" is now broken too but I haven't checked). Basically, https://github.com/WebKit/WebKit/pull/9665 introduced a traverseWithinRootPath() that takes a rootPath, which can be either a the root directory for Records, or a subfolder corresponding to a cache partition. However, it calls recordsPathIsolatedCopy() traverseRecordsFiles which still assumes rootPath is the root directory for Records and browses the list of partition subfolders: https://searchfox.org/wubkat/rev/d221d71a6a560cb45bb3e9b23e526b6bcfa9e4b3/Source/WebKit/NetworkProcess/cache/NetworkCacheStorage.cpp#355 Note that traverseWithinRootPath() is the only caller passing a rootPath that can be different from root directory for Records: https://searchfox.org/wubkat/search?q=symbol:_ZN6WebKit12NetworkCacheL20traverseRecordsFilesERKN3WTF6StringES4_RKNS1_8FunctionIFvS4_S4_S4_bS4_EEE&redirect=false Attached is a quick patch I made that seems to work, but I haven't tested extensively. 479784 2026-05-23 01:26:04 -0700 2026-05-23 01:26:04 -0700 Patch traverseWithinRootPath.patch text/plain 7707 fred.wang ZGlmZiAtLWdpdCBhL1NvdXJjZS9XZWJLaXQvTmV0d29ya1Byb2Nlc3MvY2FjaGUvTmV0d29ya0Nh Y2hlU3RvcmFnZS5jcHAgYi9Tb3VyY2UvV2ViS2l0L05ldHdvcmtQcm9jZXNzL2NhY2hlL05ldHdv 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