diff options
| -rw-r--r-- | docshell/base/nsDocShell.cpp | 30 |
1 files changed, 17 insertions, 13 deletions
diff --git a/docshell/base/nsDocShell.cpp b/docshell/base/nsDocShell.cpp index 2aea698477..ebaf07bcdf 100644 --- a/docshell/base/nsDocShell.cpp +++ b/docshell/base/nsDocShell.cpp @@ -12137,7 +12137,9 @@ nsDocShell::UpdateURLAndHistory(nsIDocument* aDocument, nsIURI* aNewURI, // indicating that we're doing a pushState rather than a replaceState, notify // bfcache that we've added a page to the history so it can evict content // viewers if appropriate. Otherwise call ReplaceEntry so that we notify - // nsIHistoryListeners that an entry was replaced. + // nsIHistoryListeners that an entry was replaced. We may not have a root + // session history if this call is coming from a document.open() in a docshell + // subtree that disables session history. nsCOMPtr<nsISHistory> rootSH; GetRootSessionHistory(getter_AddRefs(rootSH)); NS_ENSURE_TRUE(rootSH, NS_ERROR_UNEXPECTED); @@ -12147,19 +12149,21 @@ nsDocShell::UpdateURLAndHistory(nsIDocument* aDocument, nsIURI* aNewURI, nsresult rv; - if (!aReplace) { - int32_t curIndex = -1; - rv = rootSH->GetIndex(&curIndex); - if (NS_SUCCEEDED(rv) && curIndex > -1) { - internalSH->EvictOutOfRangeContentViewers(curIndex); - } - } else { - nsCOMPtr<nsISHEntry> rootSHEntry = GetRootSHEntry(newSHEntry); + if (rootSH) { + if (!aReplace) { + int32_t curIndex = -1; + rv = rootSH->GetIndex(&curIndex); + if (NS_SUCCEEDED(rv) && curIndex > -1) { + internalSH->EvictOutOfRangeContentViewers(curIndex); + } + } else { + nsCOMPtr<nsISHEntry> rootSHEntry = GetRootSHEntry(newSHEntry); - int32_t index = -1; - rv = rootSH->GetIndexOfEntry(rootSHEntry, &index); - if (NS_SUCCEEDED(rv) && index > -1) { - internalSH->ReplaceEntry(index, rootSHEntry); + int32_t index = -1; + rv = rootSH->GetIndexOfEntry(rootSHEntry, &index); + if (NS_SUCCEEDED(rv) && index > -1) { + internalSH->ReplaceEntry(index, rootSHEntry); + } } } |