update, text, response

node_modules/stream-shift/index.js

@@ -8,12 +8,13 @@ function shift (stream) {
 
 function getStateLength (state) {
   if (state.buffer.length) {
+    var idx = state.bufferIndex || 0
     // Since node 6.3.0 state.buffer is a BufferList not an array
     if (state.buffer.head) {
       return state.buffer.head.data.length
+    } else if (state.buffer.length - idx > 0 && state.buffer[idx]) {
+      return state.buffer[idx].length
     }
-
-    return state.buffer[0].length
   }
 
   return state.length