diff --git a/native_client/javascript/client.ts b/native_client/javascript/client.ts
index ecf00a95..d607060e 100644
--- a/native_client/javascript/client.ts
+++ b/native_client/javascript/client.ts
@@ -134,6 +134,11 @@ if (!args['stream']) {
     stream.feedAudioContent(chunk);
   });
   conversionStream.on('end', () => {
-    console.log(stream.finishStream());
+    if (args['extended']) {
+      let metadata = stream.finishStreamWithMetadata();
+      console.log(candidateTranscriptToString(metadata.transcripts[0]));
+    } else {
+      console.log(stream.finishStream());
+    }
   });
 }
diff --git a/taskcluster/tc-asserts.sh b/taskcluster/tc-asserts.sh
index 62f1e8ff..a56a4c49 100755
--- a/taskcluster/tc-asserts.sh
+++ b/taskcluster/tc-asserts.sh
@@ -519,6 +519,12 @@ run_js_streaming_inference_tests()
   status=$?
   set -e
   assert_correct_ldc93s1_lm "${phrase_pbmodel_withlm}" "$status"
+
+  set +e
+  phrase_pbmodel_withlm=$(deepspeech --model ${TASKCLUSTER_TMP_DIR}/${model_name_mmap} --scorer ${TASKCLUSTER_TMP_DIR}/kenlm.scorer --audio ${TASKCLUSTER_TMP_DIR}/${ldc93s1_sample_filename} --stream --extended 2>${TASKCLUSTER_TMP_DIR}/stderr | tail -n 1)
+  status=$?
+  set -e
+  assert_correct_ldc93s1_lm "${phrase_pbmodel_withlm}" "$status"
 }
 
 run_js_streaming_prod_inference_tests()
@@ -529,4 +535,11 @@ run_js_streaming_prod_inference_tests()
   status=$?
   set -e
   assert_correct_ldc93s1_prodmodel "${phrase_pbmodel_withlm}" "$status" "${_bitrate}"
+
+  local _bitrate=$1
+  set +e
+  phrase_pbmodel_withlm=$(deepspeech --model ${TASKCLUSTER_TMP_DIR}/${model_name_mmap} --scorer ${TASKCLUSTER_TMP_DIR}/kenlm.scorer --audio ${TASKCLUSTER_TMP_DIR}/${ldc93s1_sample_filename} --stream --extended 2>${TASKCLUSTER_TMP_DIR}/stderr | tail -n 1)
+  status=$?
+  set -e
+  assert_correct_ldc93s1_prodmodel "${phrase_pbmodel_withlm}" "$status" "${_bitrate}"
 }