diff --git a/src/twisted/newsfragments/11997.bugfix b/src/twisted/newsfragments/11997.bugfix
new file mode 100644
index 0000000000..3c65d78933
--- /dev/null
+++ b/src/twisted/newsfragments/11997.bugfix
@@ -0,0 +1,1 @@
+twisted.web.http.HTTPChannel now ignores the trailer headers provided in the last chunk of a chunked encoded response, rather than raising an exception.
diff --git a/src/twisted/web/http.py b/src/twisted/web/http.py
index 53c377d970..1c598380ac 100644
--- a/src/twisted/web/http.py
+++ b/src/twisted/web/http.py
@@ -1805,7 +1805,6 @@ class _IdentityTransferDecoder:
 
 maxChunkSizeLineLength = 1024
 
-
 _chunkExtChars = (
     b"\t !\"#$%&'()*+,-./0123456789:;<=>?@"
     b"ABCDEFGHIJKLMNOPQRSTUVWXYZ[]^_`"
@@ -1889,12 +1888,20 @@ class _ChunkedTransferDecoder:
         state transition this is truncated at the front so that index 0 is
         where the next state shall begin.
 
-    @ivar _start: While in the C{'CHUNK_LENGTH'} state, tracks the index into
-        the buffer at which search for CRLF should resume. Resuming the search
-        at this position avoids doing quadratic work if the chunk length line
-        arrives over many calls to C{dataReceived}.
+    @ivar _start: While in the C{'CHUNK_LENGTH'} and C{'TRAILER'} states,
+        tracks the index into the buffer at which search for CRLF should resume.
+        Resuming the search at this position avoids doing quadratic work if the
+        chunk length line arrives over many calls to C{dataReceived}.
+
+    @ivar _trailerHeaders: Accumulates raw/unparsed trailer headers.
+        See https://github.com/twisted/twisted/issues/12014
+
+    @ivar _maxTrailerHeadersSize: Maximum bytes for trailer header from the
+        response.
+    @type _maxTrailerHeadersSize: C{int}
 
-        Not used in any other state.
+    @ivar _receivedTrailerHeadersSize: Bytes received so far for the tailer headers.
+    @type _receivedTrailerHeadersSize: C{int}
     """
 
     state = "CHUNK_LENGTH"
@@ -1908,6 +1915,9 @@ class _ChunkedTransferDecoder:
         self.finishCallback = finishCallback
         self._buffer = bytearray()
         self._start = 0
+        self._trailerHeaders: List[bytearray] = []
+        self._maxTrailerHeadersSize = 2**16
+        self._receivedTrailerHeadersSize = 0
 
     def _dataReceived_CHUNK_LENGTH(self) -> bool:
         """
@@ -1984,23 +1994,37 @@ class _ChunkedTransferDecoder:
 
     def _dataReceived_TRAILER(self) -> bool:
         """
-        Await the carriage return and line feed characters that follow the
-        terminal zero-length chunk. Then invoke C{finishCallback} and switch to
-        state C{'FINISHED'}.
+        Collect trailer headers if received and finish at the terminal zero-length
+        chunk. Then invoke C{finishCallback} and switch to state C{'FINISHED'}.
 
         @returns: C{False}, as there is either insufficient data to continue,
             or no data remains.
-
-        @raises _MalformedChunkedDataError: when anything other than CRLF is
-            received.
         """
-        if len(self._buffer) < 2:
+        if (
+            self._receivedTrailerHeadersSize + len(self._buffer)
+            > self._maxTrailerHeadersSize
+        ):
+            raise _MalformedChunkedDataError("Trailer headers data is too long.")
+
+        eolIndex = self._buffer.find(b"\r\n", self._start)
+
+        if eolIndex == -1:
+            # Still no end of network line marker found.
+            # Continue processing more data.
             return False
 
-        if not self._buffer.startswith(b"\r\n"):
-            raise _MalformedChunkedDataError("Chunk did not end with CRLF")
+        if eolIndex > 0:
+            # A trailer header was detected.
+            self._trailerHeaders.append(self._buffer[0:eolIndex])
+            del self._buffer[0 : eolIndex + 2]
+            self._start = 0
+            self._receivedTrailerHeadersSize += eolIndex + 2
+            return True
+
+        # eolIndex in this part of code is equal to 0
 
         data = memoryview(self._buffer)[2:].tobytes()
+
         del self._buffer[:]
         self.state = "FINISHED"
         self.finishCallback(data)

diff --git a/src/twisted/web/test/test_http.py b/src/twisted/web/test/test_http.py
index d6a6a17054..33d0a49fca 100644
--- a/src/twisted/web/test/test_http.py
+++ b/src/twisted/web/test/test_http.py
@@ -1224,6 +1224,7 @@ class ChunkedTransferEncodingTests(unittest.TestCase):
             p.dataReceived(s)
         self.assertEqual(L, [b"a", b"b", b"c", b"1", b"2", b"3", b"4", b"5"])
         self.assertEqual(finished, [b""])
+        self.assertEqual(p._trailerHeaders, [])
 
     def test_long(self):
         """
@@ -1381,20 +1382,6 @@ class ChunkedTransferEncodingTests(unittest.TestCase):
             http._MalformedChunkedDataError, p.dataReceived, b"3\r\nabc!!!!"
         )
 
-    def test_malformedChunkEndFinal(self):
-        r"""
-        L{_ChunkedTransferDecoder.dataReceived} raises
-        L{_MalformedChunkedDataError} when the terminal zero-length chunk is
-        followed by characters other than C{\r\n}.
-        """
-        p = http._ChunkedTransferDecoder(
-            lambda b: None,
-            lambda b: None,  # pragma: nocov
-        )
-        self.assertRaises(
-            http._MalformedChunkedDataError, p.dataReceived, b"3\r\nabc\r\n0\r\n!!"
-        )
-
     def test_finish(self):
         """
         L{_ChunkedTransferDecoder.dataReceived} interprets a zero-length
@@ -1469,6 +1456,79 @@ class ChunkedTransferEncodingTests(unittest.TestCase):
         self.assertEqual(errors, [])
         self.assertEqual(successes, [True])
 
+    def test_trailerHeaders(self):
+        """
+        L{_ChunkedTransferDecoder.dataReceived} decodes chunked-encoded data
+        and ignores trailer headers which come after the terminating zero-length
+        chunk.
+        """
+        L = []
+        finished = []
+        p = http._ChunkedTransferDecoder(L.append, finished.append)
+        p.dataReceived(b"3\r\nabc\r\n5\r\n12345\r\n")
+        p.dataReceived(
+            b"a\r\n0123456789\r\n0\r\nServer-Timing: total;dur=123.4\r\nExpires: Wed, 21 Oct 2015 07:28:00 GMT\r\n\r\n"
+        )
+        self.assertEqual(L, [b"abc", b"12345", b"0123456789"])
+        self.assertEqual(finished, [b""])
+        self.assertEqual(
+            p._trailerHeaders,
+            [
+                b"Server-Timing: total;dur=123.4",
+                b"Expires: Wed, 21 Oct 2015 07:28:00 GMT",
+            ],
+        )
+
+    def test_shortTrailerHeader(self):
+        """
+        L{_ChunkedTransferDecoder.dataReceived} decodes chunks of input with
+        tailer header broken up and delivered in multiple calls.
+        """
+        L = []
+        finished = []
+        p = http._ChunkedTransferDecoder(L.append, finished.append)
+        for s in iterbytes(
+            b"3\r\nabc\r\n5\r\n12345\r\n0\r\nServer-Timing: total;dur=123.4\r\n\r\n"
+        ):
+            p.dataReceived(s)
+        self.assertEqual(L, [b"a", b"b", b"c", b"1", b"2", b"3", b"4", b"5"])
+        self.assertEqual(finished, [b""])
+        self.assertEqual(p._trailerHeaders, [b"Server-Timing: total;dur=123.4"])
+
+    def test_tooLongTrailerHeader(self):
+        r"""
+        L{_ChunkedTransferDecoder.dataReceived} raises
+        L{_MalformedChunkedDataError} when the trailing headers data is too long.
+        """
+        p = http._ChunkedTransferDecoder(
+            lambda b: None,
+            lambda b: None,  # pragma: nocov
+        )
+        p._maxTrailerHeadersSize = 10
+        self.assertRaises(
+            http._MalformedChunkedDataError,
+            p.dataReceived,
+            b"3\r\nabc\r\n0\r\nTotal-Trailer: header;greater-then=10\r\n\r\n",
+        )
+
+    def test_unfinishedTrailerHeader(self):
+        r"""
+        L{_ChunkedTransferDecoder.dataReceived} raises
+        L{_MalformedChunkedDataError} when the trailing headers data is too long
+        and doesn't have final CRLF characters.
+        """
+        p = http._ChunkedTransferDecoder(
+            lambda b: None,
+            lambda b: None,  # pragma: nocov
+        )
+        p._maxTrailerHeadersSize = 10
+        p.dataReceived(b"3\r\nabc\r\n0\r\n0123456789")
+        self.assertRaises(
+            http._MalformedChunkedDataError,
+            p.dataReceived,
+            b"A",
+        )
+
 
 class ChunkingTests(unittest.TestCase, ResponseTestMixin):
     strings = [b"abcv", b"", b"fdfsd423", b"Ffasfas\r\n", b"523523\n\rfsdf", b"4234"]

Twisted web client doesn't support trailer Server-Timing
**Describe the incorrect behavior you saw**
Twisted web client doesn't support trailer Server-Timing.
Example: https://w3c.github.io/server-timing/#the-server-timing-header-field

**Describe how to cause this behavior**
Use console program (simple http client) from this gist: https://gist.github.com/taroved/06922ceeb872094304cc889dacae099f 

Always you run the code:
```shell
python httpclient.py https://www.esquire.com/
```
You see such exception:
```
Traceback (most recent call last):
Failure: twisted.web._newclient.ResponseFailed: [<twisted.python.failure.Failure twisted.web.http._MalformedChunkedDataError: Chunk did not end with CRLF>, <twisted.python.failure.Failure twisted.web.http._DataLoss: Chunked decoder in 'TRAILER' state, still expecting more data to get to 'FINISHED' state.>]
```

**Describe the correct behavior you'd like to see**
Such pages as https://www.esquire.com/ should be downloaded without exceptions.

**Testing environment**
 - Linux 939ff8bae3fe 5.15.49-linuxkit-pr
 - Twisted version: 23.8.0

src/twisted/web/test/test_http.py::ChunkedTransferEncodingTests::test_short src/twisted/web/test/test_http.py::ChunkedTransferEncodingTests::test_shortTrailerHeader src/twisted/web/test/test_http.py::ChunkedTransferEncodingTests::test_trailerHeaders src/twisted/web/test/test_http.py::ChunkedTransferEncodingTests::test_unfinishedTrailerHeader
src/twisted/web/test/test_http.py::DateTimeTests::testRoundtrip src/twisted/web/test/test_http.py::DateTimeTests::testStringToDatetime src/twisted/web/test/test_http.py::HTTP1_0Tests::test_buffer src/twisted/web/test/test_http.py::HTTP1_0Tests::test_connectionLostAfterForceClose src/twisted/web/test/test_http.py::HTTP1_0Tests::test_noPipelining src/twisted/web/test/test_http.py::HTTP1_0Tests::test_noPipeliningApi src/twisted/web/test/test_http.py::HTTP1_0Tests::test_requestBodyDefaultTimeout src/twisted/web/test/test_http.py::HTTP1_0Tests::test_requestBodyTimeout src/twisted/web/test/test_http.py::HTTP1_0Tests::test_transportForciblyClosed src/twisted/web/test/test_http.py::HTTP1_0Tests::test_transportNotAbortedAfterConnectionLost src/twisted/web/test/test_http.py::HTTP1_0Tests::test_transportNotAbortedWithZeroAbortTimeout src/twisted/web/test/test_http.py::HTTP1_1Tests::test_buffer src/twisted/web/test/test_http.py::HTTP1_1Tests::test_connectionLostAfterForceClose src/twisted/web/test/test_http.py::HTTP1_1Tests::test_noPipelining src/twisted/web/test/test_http.py::HTTP1_1Tests::test_noPipeliningApi src/twisted/web/test/test_http.py::HTTP1_1Tests::test_requestBodyDefaultTimeout src/twisted/web/test/test_http.py::HTTP1_1Tests::test_requestBodyTimeout src/twisted/web/test/test_http.py::HTTP1_1Tests::test_transportForciblyClosed src/twisted/web/test/test_http.py::HTTP1_1Tests::test_transportNotAbortedAfterConnectionLost src/twisted/web/test/test_http.py::HTTP1_1Tests::test_transportNotAbortedWithZeroAbortTimeout src/twisted/web/test/test_http.py::HTTP1_1_close_Tests::test_buffer src/twisted/web/test/test_http.py::HTTP1_1_close_Tests::test_connectionLostAfterForceClose src/twisted/web/test/test_http.py::HTTP1_1_close_Tests::test_noPipelining src/twisted/web/test/test_http.py::HTTP1_1_close_Tests::test_noPipeliningApi src/twisted/web/test/test_http.py::HTTP1_1_close_Tests::test_requestBodyDefaultTimeout src/twisted/web/test/test_http.py::HTTP1_1_close_Tests::test_requestBodyTimeout src/twisted/web/test/test_http.py::HTTP1_1_close_Tests::test_transportForciblyClosed src/twisted/web/test/test_http.py::HTTP1_1_close_Tests::test_transportNotAbortedAfterConnectionLost src/twisted/web/test/test_http.py::HTTP1_1_close_Tests::test_transportNotAbortedWithZeroAbortTimeout src/twisted/web/test/test_http.py::HTTP0_9Tests::test_buffer src/twisted/web/test/test_http.py::HTTP0_9Tests::test_connectionLostAfterForceClose src/twisted/web/test/test_http.py::HTTP0_9Tests::test_noPipeliningApi src/twisted/web/test/test_http.py::HTTP0_9Tests::test_requestBodyDefaultTimeout src/twisted/web/test/test_http.py::HTTP0_9Tests::test_requestBodyTimeout src/twisted/web/test/test_http.py::HTTP0_9Tests::test_transportForciblyClosed src/twisted/web/test/test_http.py::HTTP0_9Tests::test_transportNotAbortedAfterConnectionLost src/twisted/web/test/test_http.py::HTTP0_9Tests::test_transportNotAbortedWithZeroAbortTimeout src/twisted/web/test/test_http.py::PipeliningBodyTests::test_noPipelining src/twisted/web/test/test_http.py::PipeliningBodyTests::test_pipeliningReadLimit src/twisted/web/test/test_http.py::ShutdownTests::test_losingConnection src/twisted/web/test/test_http.py::SecurityTests::test_isSecure src/twisted/web/test/test_http.py::SecurityTests::test_notSecure src/twisted/web/test/test_http.py::SecurityTests::test_notSecureAfterFinish src/twisted/web/test/test_http.py::GenericHTTPChannelTests::test_GenericHTTPChannelPropagatesCallLater src/twisted/web/test/test_http.py::GenericHTTPChannelTests::test_factory src/twisted/web/test/test_http.py::GenericHTTPChannelTests::test_http11 src/twisted/web/test/test_http.py::GenericHTTPChannelTests::test_http2_absent src/twisted/web/test/test_http.py::GenericHTTPChannelTests::test_protocolNone src/twisted/web/test/test_http.py::GenericHTTPChannelTests::test_protocolUnspecified src/twisted/web/test/test_http.py::GenericHTTPChannelTests::test_unknownProtocol src/twisted/web/test/test_http.py::HTTPLoopbackTests::testLoopback src/twisted/web/test/test_http.py::PersistenceTests::test_http09 src/twisted/web/test/test_http.py::PersistenceTests::test_http10 src/twisted/web/test/test_http.py::PersistenceTests::test_http11 src/twisted/web/test/test_http.py::PersistenceTests::test_http11Close src/twisted/web/test/test_http.py::IdentityTransferEncodingTests::test_earlyConnectionLose src/twisted/web/test/test_http.py::IdentityTransferEncodingTests::test_exactAmountReceived src/twisted/web/test/test_http.py::IdentityTransferEncodingTests::test_finishedConnectionLose src/twisted/web/test/test_http.py::IdentityTransferEncodingTests::test_longString src/twisted/web/test/test_http.py::IdentityTransferEncodingTests::test_rejectDataAfterFinished src/twisted/web/test/test_http.py::IdentityTransferEncodingTests::test_shortStrings src/twisted/web/test/test_http.py::IdentityTransferEncodingTests::test_unknownContentLength src/twisted/web/test/test_http.py::IdentityTransferEncodingTests::test_unknownContentLengthConnectionLose src/twisted/web/test/test_http.py::ChunkedTransferEncodingTests::test_afterFinished src/twisted/web/test/test_http.py::ChunkedTransferEncodingTests::test_decoding src/twisted/web/test/test_http.py::ChunkedTransferEncodingTests::test_earlyConnectionLose src/twisted/web/test/test_http.py::ChunkedTransferEncodingTests::test_empty src/twisted/web/test/test_http.py::ChunkedTransferEncodingTests::test_extensions src/twisted/web/test/test_http.py::ChunkedTransferEncodingTests::test_extensionsMalformed src/twisted/web/test/test_http.py::ChunkedTransferEncodingTests::test_extra src/twisted/web/test/test_http.py::ChunkedTransferEncodingTests::test_finish src/twisted/web/test/test_http.py::ChunkedTransferEncodingTests::test_finishedConnectionLose src/twisted/web/test/test_http.py::ChunkedTransferEncodingTests::test_long src/twisted/web/test/test_http.py::ChunkedTransferEncodingTests::test_malformedChunkEnd src/twisted/web/test/test_http.py::ChunkedTransferEncodingTests::test_malformedChunkSize src/twisted/web/test/test_http.py::ChunkedTransferEncodingTests::test_malformedChunkSizeHex src/twisted/web/test/test_http.py::ChunkedTransferEncodingTests::test_malformedChunkSizeNegative src/twisted/web/test/test_http.py::ChunkedTransferEncodingTests::test_newlines src/twisted/web/test/test_http.py::ChunkedTransferEncodingTests::test_oversizedChunkSizeLine src/twisted/web/test/test_http.py::ChunkedTransferEncodingTests::test_oversizedChunkSizeLinePartial src/twisted/web/test/test_http.py::ChunkedTransferEncodingTests::test_reentrantFinishedNoMoreData src/twisted/web/test/test_http.py::ChunkedTransferEncodingTests::test_tooLongTrailerHeader src/twisted/web/test/test_http.py::ChunkingTests::testChunks src/twisted/web/test/test_http.py::ChunkingTests::testConcatenatedChunks src/twisted/web/test/test_http.py::ChunkingTests::test_chunkedResponses src/twisted/web/test/test_http.py::ChunkingTests::test_multipartFormData src/twisted/web/test/test_http.py::ParsingTests::testCookies src/twisted/web/test/test_http.py::ParsingTests::testGET src/twisted/web/test/test_http.py::ParsingTests::test_basicAuth src/twisted/web/test/test_http.py::ParsingTests::test_basicAuthException src/twisted/web/test/test_http.py::ParsingTests::test_chunkedEncoding src/twisted/web/test/test_http.py::ParsingTests::test_contentLengthAndTransferEncoding src/twisted/web/test/test_http.py::ParsingTests::test_contentLengthAndTransferEncodingWithPipelinedRequests src/twisted/web/test/test_http.py::ParsingTests::test_contentLengthMalformed src/twisted/web/test/test_http.py::ParsingTests::test_contentLengthNegative src/twisted/web/test/test_http.py::ParsingTests::test_contentLengthTooPositive src/twisted/web/test/test_http.py::ParsingTests::test_duplicateContentLengths src/twisted/web/test/test_http.py::ParsingTests::test_duplicateContentLengthsWithPipelinedRequests src/twisted/web/test/test_http.py::ParsingTests::test_extraQuestionMark src/twisted/web/test/test_http.py::ParsingTests::test_formPOSTRequest src/twisted/web/test/test_http.py::ParsingTests::test_headerLimitPerRequest src/twisted/web/test/test_http.py::ParsingTests::test_headerStripWhitespace src/twisted/web/test/test_http.py::ParsingTests::test_headers src/twisted/web/test/test_http.py::ParsingTests::test_headersMultiline src/twisted/web/test/test_http.py::ParsingTests::test_headersTooBigInitialCommand src/twisted/web/test/test_http.py::ParsingTests::test_headersTooBigOtherHeaders src/twisted/web/test/test_http.py::ParsingTests::test_headersTooBigPerRequest src/twisted/web/test/test_http.py::ParsingTests::test_invalidContentLengthHeader src/twisted/web/test/test_http.py::ParsingTests::test_invalidHeaderNoColon src/twisted/web/test/test_http.py::ParsingTests::test_invalidHeaderOnlyColon src/twisted/web/test/test_http.py::ParsingTests::test_invalidHeaderWhitespaceBeforeColon src/twisted/web/test/test_http.py::ParsingTests::test_invalidNonAsciiMethod src/twisted/web/test/test_http.py::ParsingTests::test_malformedChunkedEncoding src/twisted/web/test/test_http.py::ParsingTests::test_multipartEmptyHeaderProcessingFailure src/twisted/web/test/test_http.py::ParsingTests::test_multipartFileData src/twisted/web/test/test_http.py::ParsingTests::test_multipartFormData src/twisted/web/test/test_http.py::ParsingTests::test_multipartProcessingFailure src/twisted/web/test/test_http.py::ParsingTests::test_tooManyHeaders src/twisted/web/test/test_http.py::ParsingTests::test_transferEncodingIdentity src/twisted/web/test/test_http.py::ParsingTests::test_unknownTransferEncoding src/twisted/web/test/test_http.py::QueryArgumentsTests::test_urlparse src/twisted/web/test/test_http.py::QueryArgumentsTests::test_urlparseRejectsUnicode src/twisted/web/test/test_http.py::ClientStatusParsingTests::testBaseline src/twisted/web/test/test_http.py::ClientStatusParsingTests::testNoMessage src/twisted/web/test/test_http.py::ClientStatusParsingTests::testNoMessage_trailingSpace src/twisted/web/test/test_http.py::RequestTests::test_addCookieSameSite src/twisted/web/test/test_http.py::RequestTests::test_addCookieSanitization src/twisted/web/test/test_http.py::RequestTests::test_addCookieWithAllArgumentsBytes src/twisted/web/test/test_http.py::RequestTests::test_addCookieWithAllArgumentsUnicode src/twisted/web/test/test_http.py::RequestTests::test_addCookieWithMinimumArgumentsBytes src/twisted/web/test/test_http.py::RequestTests::test_addCookieWithMinimumArgumentsUnicode src/twisted/web/test/test_http.py::RequestTests::test_connectionLost src/twisted/web/test/test_http.py::RequestTests::test_connectionLostNotification src/twisted/web/test/test_http.py::RequestTests::test_eq src/twisted/web/test/test_http.py::RequestTests::test_eqWithNonRequest src/twisted/web/test/test_http.py::RequestTests::test_finishAfterConnectionLost src/twisted/web/test/test_http.py::RequestTests::test_finishCleansConnection src/twisted/web/test/test_http.py::RequestTests::test_finishNotification src/twisted/web/test/test_http.py::RequestTests::test_finishProducerStillRegistered src/twisted/web/test/test_http.py::RequestTests::test_finishProducesLog src/twisted/web/test/test_http.py::RequestTests::test_firstWrite src/twisted/web/test/test_http.py::RequestTests::test_firstWriteHTTP11Chunked src/twisted/web/test/test_http.py::RequestTests::test_firstWriteLastModified src/twisted/web/test/test_http.py::RequestTests::test_getAllHeaders src/twisted/web/test/test_http.py::RequestTests::test_getAllHeadersMultipleHeaders src/twisted/web/test/test_http.py::RequestTests::test_getAllHeadersNoHeaders src/twisted/web/test/test_http.py::RequestTests::test_getClientAddress src/twisted/web/test/test_http.py::RequestTests::test_getClientIPWithIPv4 src/twisted/web/test/test_http.py::RequestTests::test_getClientIPWithIPv6 src/twisted/web/test/test_http.py::RequestTests::test_getClientIPWithNonTCPPeer src/twisted/web/test/test_http.py::RequestTests::test_getHeader src/twisted/web/test/test_http.py::RequestTests::test_getHeaderNotFound src/twisted/web/test/test_http.py::RequestTests::test_getHeaderReceivedMultiples src/twisted/web/test/test_http.py::RequestTests::test_getRequestHostname src/twisted/web/test/test_http.py::RequestTests::test_hashable src/twisted/web/test/test_http.py::RequestTests::test_lastModifiedAlreadyWritten src/twisted/web/test/test_http.py::RequestTests::test_ne src/twisted/web/test/test_http.py::RequestTests::test_neWithNonRequest src/twisted/web/test/test_http.py::RequestTests::test_parseCookies src/twisted/web/test/test_http.py::RequestTests::test_parseCookiesContinueAfterMalformedCookie src/twisted/web/test/test_http.py::RequestTests::test_parseCookiesEmptyCookie src/twisted/web/test/test_http.py::RequestTests::test_parseCookiesEmptyValue src/twisted/web/test/test_http.py::RequestTests::test_parseCookiesIgnoreValueless src/twisted/web/test/test_http.py::RequestTests::test_parseCookiesMultipleHeaders src/twisted/web/test/test_http.py::RequestTests::test_parseCookiesNoCookie src/twisted/web/test/test_http.py::RequestTests::test_parseCookiesRetainRightSpace src/twisted/web/test/test_http.py::RequestTests::test_parseCookiesStripLeftSpace src/twisted/web/test/test_http.py::RequestTests::test_provides_IDeprecatedHTTPChannelToRequestInterface src/twisted/web/test/test_http.py::RequestTests::test_receivedCookiesDefault src/twisted/web/test/test_http.py::RequestTests::test_registerProducerTwiceFails src/twisted/web/test/test_http.py::RequestTests::test_registerProducerWhenNotQueuedRegistersPullProducer src/twisted/web/test/test_http.py::RequestTests::test_registerProducerWhenNotQueuedRegistersPushProducer src/twisted/web/test/test_http.py::RequestTests::test_reprInitialized src/twisted/web/test/test_http.py::RequestTests::test_reprSubclass src/twisted/web/test/test_http.py::RequestTests::test_reprUninitialized src/twisted/web/test/test_http.py::RequestTests::test_requestBodyTimeoutFromFactory src/twisted/web/test/test_http.py::RequestTests::test_setHeader src/twisted/web/test/test_http.py::RequestTests::test_setHost src/twisted/web/test/test_http.py::RequestTests::test_setHostNonDefaultPort src/twisted/web/test/test_http.py::RequestTests::test_setHostSSL src/twisted/web/test/test_http.py::RequestTests::test_setHostSSLNonDefaultPort src/twisted/web/test/test_http.py::RequestTests::test_setLastModifiedCached src/twisted/web/test/test_http.py::RequestTests::test_setLastModifiedIgnore src/twisted/web/test/test_http.py::RequestTests::test_setLastModifiedNeverSet src/twisted/web/test/test_http.py::RequestTests::test_setLastModifiedNotCached src/twisted/web/test/test_http.py::RequestTests::test_setLastModifiedTwiceCached src/twisted/web/test/test_http.py::RequestTests::test_setLastModifiedTwiceNotCached src/twisted/web/test/test_http.py::RequestTests::test_setLastModifiedUpdate src/twisted/web/test/test_http.py::RequestTests::test_setResponseCode src/twisted/web/test/test_http.py::RequestTests::test_setResponseCodeAcceptsIntegers src/twisted/web/test/test_http.py::RequestTests::test_setResponseCodeAcceptsLongIntegers src/twisted/web/test/test_http.py::RequestTests::test_setResponseCodeAndMessage src/twisted/web/test/test_http.py::RequestTests::test_setResponseCodeAndMessageNotBytes src/twisted/web/test/test_http.py::RequestTests::test_unregisterNonQueuedNonStreamingProducer src/twisted/web/test/test_http.py::RequestTests::test_unregisterNonQueuedStreamingProducer src/twisted/web/test/test_http.py::RequestTests::test_writeAfterConnectionLost src/twisted/web/test/test_http.py::RequestTests::test_writeAfterFinish src/twisted/web/test/test_http.py::MultilineHeadersTests::test_extractHeader src/twisted/web/test/test_http.py::MultilineHeadersTests::test_multilineHeaders src/twisted/web/test/test_http.py::MultilineHeadersTests::test_noHeaders src/twisted/web/test/test_http.py::Expect100ContinueServerTests::test_HTTP10 src/twisted/web/test/test_http.py::Expect100ContinueServerTests::test_expect100ContinueHeader src/twisted/web/test/test_http.py::DeprecatedRequestAttributesTests::test_getClientIP src/twisted/web/test/test_http.py::DeprecatedRequestAttributesTests::test_noLongerQueued src/twisted/web/test/test_http.py::ChannelProductionTests::test_HTTPChannelCanUnregisterWithNoProducer src/twisted/web/test/test_http.py::ChannelProductionTests::test_HTTPChannelIsAProducer src/twisted/web/test/test_http.py::ChannelProductionTests::test_HTTPChannelPropagatesPausedProductionToRequest src/twisted/web/test/test_http.py::ChannelProductionTests::test_HTTPChannelPropagatesProducingFromTransportToTransport src/twisted/web/test/test_http.py::ChannelProductionTests::test_HTTPChannelRejectsMultipleProducers src/twisted/web/test/test_http.py::ChannelProductionTests::test_HTTPChannelStaysPausedWhenRequestCompletes src/twisted/web/test/test_http.py::ChannelProductionTests::test_HTTPChannelStopRequestProducer src/twisted/web/test/test_http.py::ChannelProductionTests::test_HTTPChannelStopWithNoRequestOutstanding src/twisted/web/test/test_http.py::ChannelProductionTests::test_HTTPChannelToleratesDataWhenTransportPaused src/twisted/web/test/test_http.py::ChannelProductionTests::test_HTTPChannelToleratesPullProducers src/twisted/web/test/test_http.py::ChannelProductionTests::test_HTTPChannelUnregistersSelfWhenCallingLoseConnection src/twisted/web/test/test_http.py::ChannelProductionTests::test_HTTPChannelUnregistersSelfWhenTimingOut src/twisted/web/test/test_http.py::HTTPChannelSanitizationTests::test_writeHeadersSanitizesLinearWhitespace src/twisted/web/test/test_http.py::HTTPClientSanitizationTests::test_sendHeaderSanitizesLinearWhitespace src/twisted/web/test/test_http.py::HexHelperTests::test_decodeNotHex src/twisted/web/test/test_http.py::HexHelperTests::test_decodes src/twisted/web/test/test_http.py::HexHelperTests::test_isHex src/twisted/web/test/test_http.py::HexHelperTests::test_isNotHex