Disabled chunked transfer encoding for 204 responses.

src/nxt_h1proto.c

@@ -967,7 +967,8 @@ nxt_h1p_request_header_send(nxt_task_t *task, nxt_http_request_t *r)
     http11 = (h1p->parser.version.s.minor != '0');
 
     if (r->resp.content_length == NULL || r->resp.content_length->skip) {
-        if (http11) {
+
+        if (http11 && n != NXT_HTTP_NO_CONTENT) {
             h1p->chunked = 1;
             size += nxt_length(chunked);
             /* Trailing CRLF will be added by the first chunk header. */

src/nxt_http.h

@@ -12,6 +12,7 @@ typedef enum {
     NXT_HTTP_INVALID = 0,
 
     NXT_HTTP_OK = 200,
+    NXT_HTTP_NO_CONTENT = 204,
 
     NXT_HTTP_MULTIPLE_CHOICES = 300,
     NXT_HTTP_MOVED_PERMANENTLY = 301,

test/test_python_application.py

@@ -60,7 +60,6 @@ class TestUnitPythonApplication(unit.TestUnitApplicationPython):
         self.assertEqual(self.get()['headers']['Server-Port'], '7080',
             'Server-Port header')
 
-    @unittest.expectedFailure
     def test_python_application_204_transfer_encoding(self):
         self.load('204_no_content')