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Issue #1253 - Reset performance object on navigation

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This also addresses clearing of document dependent JS slots which might
get out of sync with innerWindow navigation; relevant comments added.

This resolves #1253
This commit is contained in:
wolfbeast 2019-10-21 22:29:42 +02:00 • committed by Roy Tam
commit d21dc0f76a
1 changed files with 13 additions and 1 deletions
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14
dom/base/nsGlobalWindow.cpp
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@ -3224,6 +3224,12 @@ nsGlobalWindow::SetNewDocument(nsIDocument* aDocument,
newInnerWindow->mLocalStorage = nullptr;
newInnerWindow->mSessionStorage = nullptr;
newInnerWindow->mPerformance = nullptr;
// This must be called after nulling the internal objects because
// we might recreate them here by calling the getter methods, and
// store them into the JS slots. If we null them after, the slot
// values and the objects will be out of sync.
newInnerWindow->ClearDocumentDependentSlots(cx);
}
} else {
@ -3364,10 +3370,16 @@ nsGlobalWindow::InnerSetNewDocument(JSContext* aCx, nsIDocument* aDocument)
}
mDoc = aDocument;
ClearDocumentDependentSlots(aCx);
mFocusedNode = nullptr;
mLocalStorage = nullptr;
mSessionStorage = nullptr;
mPerformance = nullptr;
// This must be called after nulling the internal objects because we might
// recreate them here by calling the getter methods, and store them into the JS
// slots. If we null them after, the slot values and the objects will be
// out of sync.
ClearDocumentDependentSlots(aCx);
#ifdef DEBUG
mLastOpenedURI = aDocument->GetDocumentURI();