fixup! move string construction to c++

Author: debadree25

lib/internal/url.js

@@ -1036,9 +1036,7 @@ function installObjectURLMethods() {
 
     const id = cryptoRandom.randomUUID();
 
-    bindingBlob.storeDataObject(id, obj[blob.kHandle], obj.size, obj.type);
-
-    return `blob:nodedata:${id}`;
+    return bindingBlob.storeDataObject(id, obj[blob.kHandle], obj.size, obj.type);
   }
 
   function revokeObjectURL(url) {

src/node_blob.cc

@@ -391,13 +391,19 @@ void Blob::StoreDataObject(const v8::FunctionCallbackInfo<v8::Value>& args) {
 
   size_t length = args[2].As<Uint32>()->Value();
   Utf8Value type(env->isolate(), args[3]);
+  std::string key_str(*key, key.length());
 
   binding_data->store_data_object(
-      std::string(*key, key.length()),
-      BlobBindingData::StoredDataObject(
-        BaseObjectPtr<Blob>(blob),
-        length,
-        std::string(*type, type.length())));
+      key_str,
+      BlobBindingData::StoredDataObject(BaseObjectPtr<Blob>(blob),
+                                        length,
+                                        std::string(*type, type.length())));
+  std::string final_url = "blob:nodedata:" + key_str;
+  args.GetReturnValue().Set(String::NewFromUtf8(env->isolate(),
+                                                final_url.c_str(),
+                                                v8::NewStringType::kNormal,
+                                                final_url.length())
+                                .ToLocalChecked());
 }
 
 void RevokeObjectURLImpl(std::string_view input,
@@ -431,7 +437,6 @@ void Blob::RevokeObjectURL(const FunctionCallbackInfo<Value>& args) {
 
 void Blob::FastRevokeObjectURL(Local<Value> receiver,
                                const FastOneByteString& input) {
-  printf("FastRevokeObjectURL\n");
   BlobBindingData* binding_data = FromJSObject<BlobBindingData>(receiver);
   std::string_view input_view(input.data, input.length);
   RevokeObjectURLImpl(input_view, binding_data);