Null check frame in Document::dispatchDisabledAdaptationsDidChangeForMainFrame and...

[WebKit-https.git] / Source / WebCore / loader / DocumentLoader.cpp

diff --git a/Source/WebCore/loader/DocumentLoader.cpp b/Source/WebCore/loader/DocumentLoader.cpp
index 2fc21498c0b138f76b3fa980d56fc4ee711c50a9..408a13e374bec78e67ac990b78a628110e1eb130 100644 (file)
--- a/Source/WebCore/loader/DocumentLoader.cpp
+++ b/Source/WebCore/loader/DocumentLoader.cpp
@@ -1087,7 +1087,10 @@ void DocumentLoader::commitData(const char* bytes, size_t length)
         bool hasBegun = m_writer.begin(documentURL(), false);
         m_writer.setDocumentWasLoadedAsPartOfNavigation();
 
-        auto& document = *m_frame->document();
+        auto* documentOrNull = m_frame ? m_frame->document() : nullptr;
+        if (!documentOrNull)
+            return;
+        auto& document = *documentOrNull;
 
         if (SecurityPolicy::allowSubstituteDataAccessToLocal() && m_originalSubstituteDataWasValid) {
             // If this document was loaded with substituteData, then the document can