From 8cacfbee74b77c149e15ce38b3029cb5e7110f10 Mon Sep 17 00:00:00 2001
From: Jacek Mleczek <jacek.mleczek@rst.com.pl>
Date: Fri, 15 Mar 2019 11:21:43 +0100
Subject: [PATCH] fix NullPointerException when response doesn't have content
 type

---
 .../socket/engineio/client/transports/PollingXHR.java  | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/src/main/java/io/socket/engineio/client/transports/PollingXHR.java b/src/main/java/io/socket/engineio/client/transports/PollingXHR.java
index ed118eb3..a1c128aa 100644
--- a/src/main/java/io/socket/engineio/client/transports/PollingXHR.java
+++ b/src/main/java/io/socket/engineio/client/transports/PollingXHR.java
@@ -268,9 +268,9 @@ private void onResponseHeaders(Map<String, List<String>> headers) {
 
         private void onLoad() {
             ResponseBody body = response.body();
-            String contentType = body.contentType().toString();
 
             try {
+                String contentType = getContentTypeFromBody(body);
                 if (BINARY_CONTENT_TYPE.equalsIgnoreCase(contentType)) {
                     this.onData(body.bytes());
                 } else {
@@ -281,6 +281,14 @@ private void onLoad() {
             }
         }
 
+        private String getContentTypeFromBody(ResponseBody body) {
+            MediaType mediaType = body.contentType();
+            if (mediaType == null) {
+                return "";
+            }
+            return mediaType.toString();
+        }
+
         public static class Options {
 
             public String uri;