Add Content-Type header to PATCH requests

Author: Acconut

src/main/java/io/tus/java/client/TusUploader.java

@@ -49,6 +49,7 @@ public TusUploader(TusClient client, URL uploadURL, InputStream input, long offs
         connection = (HttpURLConnection) uploadURL.openConnection();
         client.prepareConnection(connection);
         connection.setRequestProperty("Upload-Offset", Long.toString(offset));
+        connection.setRequestProperty("Content-Type", "application/offset+octet-stream");
         try {
             connection.setRequestMethod("PATCH");
             // Check whether we are running on a buggy JRE

src/test/java/io/tus/java/client/TestTusUploader.java

@@ -41,6 +41,7 @@ public void testTusUploader() throws IOException, ProtocolException {
                 .withPath("/files/foo")
                 .withHeader("Tus-Resumable", TusClient.TUS_VERSION)
                 .withHeader("Upload-Offset", "3")
+                .withHeader("Content-Type", "application/offset+octet-stream")
                 .withBody(Arrays.copyOfRange(content, 3, 11)))
                 .respond(new HttpResponse()
                         .withStatusCode(204)