Use plaintext Content-Type when using polling (#248)

Author: sirkrypt0

src/engineio/asyncio_client.py

@@ -586,7 +586,7 @@ async def _write_loop(self):
                 p = payload.Payload(packets=packets)
                 r = await self._send_request(
                     'POST', self.base_url, body=p.encode(),
-                    headers={'Content-Type': 'application/octet-stream'},
+                    headers={'Content-Type': 'text/plain'},
                     timeout=self.request_timeout)
                 for pkt in packets:
                     self.queue.task_done()

src/engineio/client.py

@@ -680,7 +680,7 @@ def _write_loop(self):
                 p = payload.Payload(packets=packets)
                 r = self._send_request(
                     'POST', self.base_url, body=p.encode(),
-                    headers={'Content-Type': 'application/octet-stream'},
+                    headers={'Content-Type': 'text/plain'},
                     timeout=self.request_timeout)
                 for pkt in packets:
                     self.queue.task_done()

tests/asyncio/test_asyncio_client.py

@@ -1211,7 +1211,7 @@ def test_write_loop_polling_one_packet(self):
             'POST',
             'http://foo',
             body=p.encode(),
-            headers={'Content-Type': 'application/octet-stream'},
+            headers={'Content-Type': 'text/plain'},
             timeout=5,
         )
 
@@ -1252,7 +1252,7 @@ def test_write_loop_polling_three_packets(self):
             'POST',
             'http://foo',
             body=p.encode(),
-            headers={'Content-Type': 'application/octet-stream'},
+            headers={'Content-Type': 'text/plain'},
             timeout=5,
         )
 
@@ -1288,7 +1288,7 @@ def test_write_loop_polling_two_packets_done(self):
             'POST',
             'http://foo',
             body=p.encode(),
-            headers={'Content-Type': 'application/octet-stream'},
+            headers={'Content-Type': 'text/plain'},
             timeout=5,
         )
         assert c.state == 'connected'
@@ -1316,7 +1316,7 @@ def test_write_loop_polling_bad_connection(self):
             'POST',
             'http://foo',
             body=p.encode(),
-            headers={'Content-Type': 'application/octet-stream'},
+            headers={'Content-Type': 'text/plain'},
             timeout=5,
         )
         assert c.state == 'connected'
@@ -1345,7 +1345,7 @@ def test_write_loop_polling_bad_status(self):
             'POST',
             'http://foo',
             body=p.encode(),
-            headers={'Content-Type': 'application/octet-stream'},
+            headers={'Content-Type': 'text/plain'},
             timeout=5,
         )
         assert c.state == 'disconnected'

tests/common/test_client.py

@@ -1466,7 +1466,7 @@ def test_write_loop_polling_one_packet(self):
             'POST',
             'http://foo',
             body=p.encode(),
-            headers={'Content-Type': 'application/octet-stream'},
+            headers={'Content-Type': 'text/plain'},
             timeout=5,
         )
 
@@ -1501,7 +1501,7 @@ def test_write_loop_polling_three_packets(self):
             'POST',
             'http://foo',
             body=p.encode(),
-            headers={'Content-Type': 'application/octet-stream'},
+            headers={'Content-Type': 'text/plain'},
             timeout=5,
         )
 
@@ -1534,7 +1534,7 @@ def test_write_loop_polling_two_packets_done(self):
             'POST',
             'http://foo',
             body=p.encode(),
-            headers={'Content-Type': 'application/octet-stream'},
+            headers={'Content-Type': 'text/plain'},
             timeout=5,
         )
         assert c.state == 'connected'
@@ -1563,7 +1563,7 @@ def test_write_loop_polling_bad_connection(self):
             'POST',
             'http://foo',
             body=p.encode(),
-            headers={'Content-Type': 'application/octet-stream'},
+            headers={'Content-Type': 'text/plain'},
             timeout=5,
         )
         assert c.state == 'connected'
@@ -1592,7 +1592,7 @@ def test_write_loop_polling_bad_status(self):
             'POST',
             'http://foo',
             body=p.encode(),
-            headers={'Content-Type': 'application/octet-stream'},
+            headers={'Content-Type': 'text/plain'},
             timeout=5,
         )
         assert c.state == 'disconnected'