Fixed handling of binary metadata values

src/node/ext/call.cc

@@ -111,9 +111,10 @@ bool CreateMetadataArray(Handle<Object> metadata, grpc_metadata_array *array,
           NanAssignPersistent(*handle, value);
           resources->handles.push_back(unique_ptr<PersistentHolder>(
               new PersistentHolder(handle)));
-          continue;
-        }
+        } else {
+          return false;
         }
+      } else {
         if (value->IsString()) {
           Handle<String> string_value = value->ToString();
           NanUtf8String *utf8_value = new NanUtf8String(string_value);
@@ -123,6 +124,7 @@ bool CreateMetadataArray(Handle<Object> metadata, grpc_metadata_array *array,
         } else {
           return false;
         }
+      }
       array->count += 1;
     }
   }
@@ -156,8 +158,7 @@ Handle<Value> ParseMetadata(const grpc_metadata_array *metadata_array) {
     }
     if (EndsWith(elem->key, "-bin")) {
       array->Set(index_map[elem->key],
-                 MakeFastBuffer(
-                     NanNewBufferHandle(elem->value, elem->value_length)));
+                 NanNewBufferHandle(elem->value, elem->value_length));
     } else {
       array->Set(index_map[elem->key], NanNew(elem->value));
     }

src/node/src/metadata.js

@@ -147,7 +147,9 @@ Metadata.prototype.getMap = function() {
  */
 Metadata.prototype.clone = function() {
   var copy = new Metadata();
-  copy._internal_repr = _.cloneDeep(this._internal_repr);
+  _.forOwn(this._internal_repr, function(value, key) {
+    copy._internal_repr[key] = _.clone(value);
+  });
   return copy;
 };