diff --git a/core/fxcrt/xml/cfx_xmlelement.h b/core/fxcrt/xml/cfx_xmlelement.h
index ca5fd5e..0d3468a 100644
--- a/core/fxcrt/xml/cfx_xmlelement.h
+++ b/core/fxcrt/xml/cfx_xmlelement.h
@@ -54,4 +54,10 @@
   std::map<WideString, WideString> attrs_;
 };
 
+inline CFX_XMLElement* ToXMLElement(CFX_XMLNode* pNode) {
+  return pNode && pNode->GetType() == FX_XMLNODE_Element
+             ? static_cast<CFX_XMLElement*>(pNode)
+             : nullptr;
+}
+
 #endif  // CORE_FXCRT_XML_CFX_XMLELEMENT_H_
diff --git a/fxjs/xfa/cjx_object.cpp b/fxjs/xfa/cjx_object.cpp
index 2cf6f67..1c0454d 100644
--- a/fxjs/xfa/cjx_object.cpp
+++ b/fxjs/xfa/cjx_object.cpp
@@ -480,13 +480,11 @@
     return;
   }
 
-  auto* elem = static_cast<CFX_XMLElement*>(xfaObj->GetXMLMappingNode());
-  ASSERT(elem->GetType() == FX_XMLNODE_Element);
-
   WideString wsAttrName = CXFA_Node::AttributeToName(eAttr);
   if (eAttr == XFA_Attribute::ContentType)
     wsAttrName = L"xfa:" + wsAttrName;
 
+  CFX_XMLElement* elem = ToXMLElement(xfaObj->GetXMLMappingNode());
   elem->SetAttribute(wsAttrName, wsValue);
   return;
 }
@@ -544,14 +542,10 @@
   OnChanging(eAttr, bNotify);
   SetMapModuleValue(pKey, pValue);
   OnChanged(eAttr, bNotify, false);
-  if (!ToNode(GetXFAObject())->IsNeedSavingXMLNode())
-    return nullptr;
 
-  auto* elem =
-      static_cast<CFX_XMLElement*>(ToNode(GetXFAObject())->GetXMLMappingNode());
-  ASSERT(elem->GetType() == FX_XMLNODE_Element);
-
-  return elem;
+  CXFA_Node* pNode = ToNode(GetXFAObject());
+  return pNode->IsNeedSavingXMLNode() ? ToXMLElement(pNode->GetXMLMappingNode())
+                                      : nullptr;
 }
 
 void CJX_Object::SetContent(const WideString& wsContent,
diff --git a/xfa/fxfa/parser/cxfa_document.cpp b/xfa/fxfa/parser/cxfa_document.cpp
index 5a85482..3e80466 100644
--- a/xfa/fxfa/parser/cxfa_document.cpp
+++ b/xfa/fxfa/parser/cxfa_document.cpp
@@ -539,10 +539,9 @@
                                            false);
             }
           } else {
-            CFX_XMLNode* pXMLNode = pDataNode->GetXMLMappingNode();
-            ASSERT(pXMLNode->GetType() == FX_XMLNODE_Element);
-            static_cast<CFX_XMLElement*>(pXMLNode)->SetAttribute(
-                L"xfa:dataNode", L"dataGroup");
+            CFX_XMLElement* pElement =
+                ToXMLElement(pDataNode->GetXMLMappingNode());
+            pElement->SetAttribute(L"xfa:dataNode", L"dataGroup");
           }
         } else if (!wsValue.IsEmpty()) {
           pDataNode->JSObject()->SetAttributeValue(
diff --git a/xfa/fxfa/parser/cxfa_document_parser.cpp b/xfa/fxfa/parser/cxfa_document_parser.cpp
index 8e5ff9f..27d80cd 100644
--- a/xfa/fxfa/parser/cxfa_document_parser.cpp
+++ b/xfa/fxfa/parser/cxfa_document_parser.cpp
@@ -669,11 +669,9 @@
     if (pParentXMLNode)
       pParentXMLNode->RemoveChildNode(pXMLDocumentNode);
 
-    ASSERT(pXMLDocumentNode->GetType() == FX_XMLNODE_Element);
-    if (pXMLDocumentNode->GetType() == FX_XMLNODE_Element) {
-      static_cast<CFX_XMLElement*>(pXMLDocumentNode)
-          ->RemoveAttribute(L"xmlns:xfa");
-    }
+    CFX_XMLElement* pElement = ToXMLElement(pXMLDocumentNode);
+    pElement->RemoveAttribute(L"xmlns:xfa");
+
     // The node was either removed from the parent above, or already has no
     // parent so we can take ownership.
     pDataElement->AppendChild(pXMLDocumentNode);
diff --git a/xfa/fxfa/parser/cxfa_node.cpp b/xfa/fxfa/parser/cxfa_node.cpp
index 6d45eb8..5f919b7 100644
--- a/xfa/fxfa/parser/cxfa_node.cpp
+++ b/xfa/fxfa/parser/cxfa_node.cpp
@@ -2712,11 +2712,10 @@
   CXFA_Node* pHrefNode = pBind->GetFirstChild();
   if (pHrefNode) {
     pHrefNode->JSObject()->SetCData(XFA_Attribute::Value, wsHref, false, false);
-  } else {
-    CFX_XMLNode* pXMLNode = pBind->GetXMLMappingNode();
-    ASSERT(pXMLNode && pXMLNode->GetType() == FX_XMLNODE_Element);
-    static_cast<CFX_XMLElement*>(pXMLNode)->SetAttribute(L"href", wsHref);
+    return;
   }
+  CFX_XMLElement* pElement = ToXMLElement(pBind->GetXMLMappingNode());
+  pElement->SetAttribute(L"href", wsHref);
 }
 
 CXFA_FFWidget* CXFA_Node::GetNextWidget(CXFA_FFWidget* pWidget) {
diff --git a/xfa/fxfa/parser/xfa_utils.cpp b/xfa/fxfa/parser/xfa_utils.cpp
index b42da0b..54cca88 100644
--- a/xfa/fxfa/parser/xfa_utils.cpp
+++ b/xfa/fxfa/parser/xfa_utils.cpp
@@ -497,20 +497,13 @@
   if (pDataNode->GetElementType() != XFA_Element::DataGroup)
     return;
 
+  CFX_XMLElement* pElement = ToXMLElement(pDataNode->GetXMLMappingNode());
   if (iChildNum > 0) {
-    CFX_XMLNode* pXMLNode = pDataNode->GetXMLMappingNode();
-    ASSERT(pXMLNode->GetType() == FX_XMLNODE_Element);
-    CFX_XMLElement* pXMLElement = static_cast<CFX_XMLElement*>(pXMLNode);
-    if (pXMLElement->HasAttribute(L"xfa:dataNode"))
-      pXMLElement->RemoveAttribute(L"xfa:dataNode");
-
+    if (pElement->HasAttribute(L"xfa:dataNode"))
+      pElement->RemoveAttribute(L"xfa:dataNode");
     return;
   }
-
-  CFX_XMLNode* pXMLNode = pDataNode->GetXMLMappingNode();
-  ASSERT(pXMLNode->GetType() == FX_XMLNODE_Element);
-  static_cast<CFX_XMLElement*>(pXMLNode)->SetAttribute(L"xfa:dataNode",
-                                                       L"dataGroup");
+  pElement->SetAttribute(L"xfa:dataNode", L"dataGroup");
 }
 
 void XFA_DataExporter_RegenerateFormFile(