diff --git a/fxjs/cfx_v8.cpp b/fxjs/cfx_v8.cpp
index 8972158..41cd44f 100644
--- a/fxjs/cfx_v8.cpp
+++ b/fxjs/cfx_v8.cpp
@@ -17,42 +17,20 @@
 v8::Local<v8::Value> CFX_V8::GetObjectProperty(
     v8::Local<v8::Object> pObj,
     ByteStringView bsUTF8PropertyName) {
-  if (pObj.IsEmpty())
-    return v8::Local<v8::Value>();
-  v8::Local<v8::Value> val;
-  if (!pObj->Get(m_pIsolate->GetCurrentContext(), NewString(bsUTF8PropertyName))
-           .ToLocal(&val))
-    return v8::Local<v8::Value>();
-  return val;
+  return fxv8::ReentrantGetObjectPropertyHelper(m_pIsolate.Get(), pObj,
+                                                bsUTF8PropertyName);
 }
 
 std::vector<WideString> CFX_V8::GetObjectPropertyNames(
     v8::Local<v8::Object> pObj) {
-  if (pObj.IsEmpty())
-    return std::vector<WideString>();
-
-  v8::Local<v8::Array> val;
-  v8::Local<v8::Context> context = m_pIsolate->GetCurrentContext();
-  if (!pObj->GetPropertyNames(context).ToLocal(&val))
-    return std::vector<WideString>();
-
-  std::vector<WideString> result;
-  for (uint32_t i = 0; i < val->Length(); ++i) {
-    result.push_back(ToWideString(val->Get(context, i).ToLocalChecked()));
-  }
-
-  return result;
+  return fxv8::ReentrantGetObjectPropertyNamesHelper(m_pIsolate.Get(), pObj);
 }
 
 bool CFX_V8::PutObjectProperty(v8::Local<v8::Object> pObj,
                                ByteStringView bsUTF8PropertyName,
                                v8::Local<v8::Value> pPut) {
-  ASSERT(!pPut.IsEmpty());
-  if (pObj.IsEmpty())
-    return false;
-
-  v8::Local<v8::String> name = NewString(bsUTF8PropertyName);
-  return pObj->Set(m_pIsolate->GetCurrentContext(), name, pPut).IsJust();
+  return fxv8::ReentrantPutObjectPropertyHelper(m_pIsolate.Get(), pObj,
+                                                bsUTF8PropertyName, pPut);
 }
 
 void CFX_V8::DisposeIsolate() {
diff --git a/fxjs/fxv8.cpp b/fxjs/fxv8.cpp
index c30461b..8068f39 100644
--- a/fxjs/fxv8.cpp
+++ b/fxjs/fxv8.cpp
@@ -44,10 +44,12 @@
                                        v8::Local<v8::Value> pValue) {
   if (pValue.IsEmpty())
     return WideString();
+
   v8::MaybeLocal<v8::String> maybe_string =
       pValue->ToString(pIsolate->GetCurrentContext());
   if (maybe_string.IsEmpty())
     return WideString();
+
   v8::String::Utf8Value s(pIsolate, maybe_string.ToLocalChecked());
   return WideString::FromUTF8(ByteStringView(*s, s.length()));
 }
@@ -56,12 +58,61 @@
                                        v8::Local<v8::Value> pValue) {
   if (pValue.IsEmpty())
     return ByteString();
+
   v8::MaybeLocal<v8::String> maybe_string =
       pValue->ToString(pIsolate->GetCurrentContext());
   if (maybe_string.IsEmpty())
     return ByteString();
+
   v8::String::Utf8Value s(pIsolate, maybe_string.ToLocalChecked());
   return ByteString(*s);
 }
 
+v8::Local<v8::Value> ReentrantGetObjectPropertyHelper(
+    v8::Isolate* pIsolate,
+    v8::Local<v8::Object> pObj,
+    ByteStringView bsUTF8PropertyName) {
+  if (pObj.IsEmpty())
+    return v8::Local<v8::Value>();
+
+  v8::Local<v8::Value> val;
+  if (!pObj->Get(pIsolate->GetCurrentContext(),
+                 NewStringHelper(pIsolate, bsUTF8PropertyName))
+           .ToLocal(&val)) {
+    return v8::Local<v8::Value>();
+  }
+  return val;
+}
+
+std::vector<WideString> ReentrantGetObjectPropertyNamesHelper(
+    v8::Isolate* pIsolate,
+    v8::Local<v8::Object> pObj) {
+  if (pObj.IsEmpty())
+    return std::vector<WideString>();
+
+  v8::Local<v8::Array> val;
+  v8::Local<v8::Context> context = pIsolate->GetCurrentContext();
+  if (!pObj->GetPropertyNames(context).ToLocal(&val))
+    return std::vector<WideString>();
+
+  std::vector<WideString> result;
+  for (uint32_t i = 0; i < val->Length(); ++i) {
+    result.push_back(ReentrantToWideStringHelper(
+        pIsolate, val->Get(context, i).ToLocalChecked()));
+  }
+  return result;
+}
+
+bool ReentrantPutObjectPropertyHelper(v8::Isolate* pIsolate,
+                                      v8::Local<v8::Object> pObj,
+                                      ByteStringView bsUTF8PropertyName,
+                                      v8::Local<v8::Value> pPut) {
+  ASSERT(!pPut.IsEmpty());
+  if (pObj.IsEmpty())
+    return false;
+
+  v8::Local<v8::String> name = NewStringHelper(pIsolate, bsUTF8PropertyName);
+  return pObj->Set(pIsolate->GetCurrentContext(), name, pPut).IsJust();
+}
+
 }  // namespace fxv8
diff --git a/fxjs/fxv8.h b/fxjs/fxv8.h
index 690beb3..b79ec27 100644
--- a/fxjs/fxv8.h
+++ b/fxjs/fxv8.h
@@ -7,6 +7,8 @@
 #ifndef FXJS_FXV8_H_
 #define FXJS_FXV8_H_
 
+#include <vector>
+
 #include "core/fxcrt/fx_string.h"
 #include "v8/include/v8.h"
 
@@ -27,6 +29,18 @@
 ByteString ReentrantToByteStringHelper(v8::Isolate* pIsolate,
                                        v8::Local<v8::Value> pValue);
 
+v8::Local<v8::Value> ReentrantGetObjectPropertyHelper(
+    v8::Isolate* pIsolate,
+    v8::Local<v8::Object> pObj,
+    ByteStringView bsUTF8PropertyName);
+std::vector<WideString> ReentrantGetObjectPropertyNamesHelper(
+    v8::Isolate* pIsolate,
+    v8::Local<v8::Object> pObj);
+bool ReentrantPutObjectPropertyHelper(v8::Isolate* pIsolate,
+                                      v8::Local<v8::Object> pObj,
+                                      ByteStringView bsUTF8PropertyName,
+                                      v8::Local<v8::Value> pPut);
+
 }  // namespace fxv8
 
 #endif  // FXJS_FXV8_H_