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+Transfer-Encoding header
+========================
+
+## Trailing space on chunked body
+
+<!-- meta={"type": "response"} -->
+```http
+HTTP/1.1 200 OK
+Content-Type: text/plain
+Transfer-Encoding: chunked
+
+25  \r\n\
+This is the data in the first chunk
+
+1C
+and this is the second one
+
+0  \r\n\
+
+
+```
+
+```log
+off=0 message begin
+off=5 len=3 span[version]="1.1"
+off=8 version complete
+off=13 len=2 span[status]="OK"
+off=17 status complete
+off=17 len=12 span[header_field]="Content-Type"
+off=30 header_field complete
+off=31 len=10 span[header_value]="text/plain"
+off=43 header_value complete
+off=43 len=17 span[header_field]="Transfer-Encoding"
+off=61 header_field complete
+off=62 len=7 span[header_value]="chunked"
+off=71 header_value complete
+off=73 headers complete status=200 v=1/1 flags=208 content_length=0
+off=75 error code=12 reason="Invalid character in chunk size"
+```
+
+## `chunked` before other transfer-encoding
+
+<!-- meta={"type": "response"} -->
+```http
+HTTP/1.1 200 OK
+Accept: */*
+Transfer-Encoding: chunked, deflate
+
+World
+```
+
+```log
+off=0 message begin
+off=5 len=3 span[version]="1.1"
+off=8 version complete
+off=13 len=2 span[status]="OK"
+off=17 status complete
+off=17 len=6 span[header_field]="Accept"
+off=24 header_field complete
+off=25 len=3 span[header_value]="*/*"
+off=30 header_value complete
+off=30 len=17 span[header_field]="Transfer-Encoding"
+off=48 header_field complete
+off=49 len=16 span[header_value]="chunked, deflate"
+off=67 header_value complete
+off=69 headers complete status=200 v=1/1 flags=200 content_length=0
+off=69 len=5 span[body]="World"
+```
+
+## multiple transfer-encoding where chunked is not the last one
+
+<!-- meta={"type": "response"} -->
+```http
+HTTP/1.1 200 OK
+Accept: */*
+Transfer-Encoding: chunked
+Transfer-Encoding: identity
+
+World
+```
+
+```log
+off=0 message begin
+off=5 len=3 span[version]="1.1"
+off=8 version complete
+off=13 len=2 span[status]="OK"
+off=17 status complete
+off=17 len=6 span[header_field]="Accept"
+off=24 header_field complete
+off=25 len=3 span[header_value]="*/*"
+off=30 header_value complete
+off=30 len=17 span[header_field]="Transfer-Encoding"
+off=48 header_field complete
+off=49 len=7 span[header_value]="chunked"
+off=58 header_value complete
+off=58 len=17 span[header_field]="Transfer-Encoding"
+off=76 header_field complete
+off=77 len=8 span[header_value]="identity"
+off=87 header_value complete
+off=89 headers complete status=200 v=1/1 flags=200 content_length=0
+off=89 len=5 span[body]="World"
+```
+
+## `chunkedchunked` transfer-encoding does not enable chunked enconding
+
+This check that the word `chunked` repeat more than once (with or without spaces) does not mistakenly enables chunked encoding.
+
+<!-- meta={"type": "response"} -->
+```http
+HTTP/1.1 200 OK
+Accept: */*
+Transfer-Encoding: chunkedchunked
+
+2
+OK
+0
+
+
+```
+
+```log
+off=0 message begin
+off=5 len=3 span[version]="1.1"
+off=8 version complete
+off=13 len=2 span[status]="OK"
+off=17 status complete
+off=17 len=6 span[header_field]="Accept"
+off=24 header_field complete
+off=25 len=3 span[header_value]="*/*"
+off=30 header_value complete
+off=30 len=17 span[header_field]="Transfer-Encoding"
+off=48 header_field complete
+off=49 len=14 span[header_value]="chunkedchunked"
+off=65 header_value complete
+off=67 headers complete status=200 v=1/1 flags=200 content_length=0
+off=67 len=1 span[body]="2"
+off=68 len=1 span[body]=cr
+off=69 len=1 span[body]=lf
+off=70 len=2 span[body]="OK"
+off=72 len=1 span[body]=cr
+off=73 len=1 span[body]=lf
+off=74 len=1 span[body]="0"
+off=75 len=1 span[body]=cr
+off=76 len=1 span[body]=lf
+off=77 len=1 span[body]=cr
+off=78 len=1 span[body]=lf
+```
+
+## Chunk extensions
+
+<!-- meta={"type": "response"} -->
+```http
+HTTP/1.1 200 OK
+Host: localhost
+Transfer-encoding: chunked
+
+5;ilovew3;somuchlove=aretheseparametersfor
+hello
+6;blahblah;blah
+ world
+0
+
+
+```
+
+```log
+off=0 message begin
+off=5 len=3 span[version]="1.1"
+off=8 version complete
+off=13 len=2 span[status]="OK"
+off=17 status complete
+off=17 len=4 span[header_field]="Host"
+off=22 header_field complete
+off=23 len=9 span[header_value]="localhost"
+off=34 header_value complete
+off=34 len=17 span[header_field]="Transfer-encoding"
+off=52 header_field complete
+off=53 len=7 span[header_value]="chunked"
+off=62 header_value complete
+off=64 headers complete status=200 v=1/1 flags=208 content_length=0
+off=66 len=7 span[chunk_extension_name]="ilovew3"
+off=74 chunk_extension_name complete
+off=74 len=10 span[chunk_extension_name]="somuchlove"
+off=85 chunk_extension_name complete
+off=85 len=21 span[chunk_extension_value]="aretheseparametersfor"
+off=107 chunk_extension_value complete
+off=108 chunk header len=5
+off=108 len=5 span[body]="hello"
+off=115 chunk complete
+off=117 len=8 span[chunk_extension_name]="blahblah"
+off=126 chunk_extension_name complete
+off=126 len=4 span[chunk_extension_name]="blah"
+off=131 chunk_extension_name complete
+off=132 chunk header len=6
+off=132 len=6 span[body]=" world"
+off=140 chunk complete
+off=143 chunk header len=0
+off=145 chunk complete
+off=145 message complete
+```
+
+## No semicolon before chunk extensions
+
+<!-- meta={"type": "response"} -->
+```http
+HTTP/1.1 200 OK
+Host: localhost
+Transfer-encoding: chunked
+
+2 erfrferferf
+aa
+0 rrrr
+
+
+```
+
+```log
+off=0 message begin
+off=5 len=3 span[version]="1.1"
+off=8 version complete
+off=13 len=2 span[status]="OK"
+off=17 status complete
+off=17 len=4 span[header_field]="Host"
+off=22 header_field complete
+off=23 len=9 span[header_value]="localhost"
+off=34 header_value complete
+off=34 len=17 span[header_field]="Transfer-encoding"
+off=52 header_field complete
+off=53 len=7 span[header_value]="chunked"
+off=62 header_value complete
+off=64 headers complete status=200 v=1/1 flags=208 content_length=0
+off=65 error code=12 reason="Invalid character in chunk size"
+```
+
+
+## No extension after semicolon
+
+<!-- meta={"type": "response"} -->
+```http
+HTTP/1.1 200 OK
+Host: localhost
+Transfer-encoding: chunked
+
+2;
+aa
+0
+
+
+```
+
+```log
+off=0 message begin
+off=5 len=3 span[version]="1.1"
+off=8 version complete
+off=13 len=2 span[status]="OK"
+off=17 status complete
+off=17 len=4 span[header_field]="Host"
+off=22 header_field complete
+off=23 len=9 span[header_value]="localhost"
+off=34 header_value complete
+off=34 len=17 span[header_field]="Transfer-encoding"
+off=52 header_field complete
+off=53 len=7 span[header_value]="chunked"
+off=62 header_value complete
+off=64 headers complete status=200 v=1/1 flags=208 content_length=0
+off=67 error code=2 reason="Invalid character in chunk extensions"
+```
+
+
+## Chunk extensions quoting
+
+<!-- meta={"type": "response"} -->
+```http
+HTTP/1.1 200 OK
+Host: localhost
+Transfer-Encoding: chunked
+
+5;ilovew3="I love; extensions";somuchlove="aretheseparametersfor";blah;foo=bar
+hello
+6;blahblah;blah
+ world
+0
+
+```
+
+```log
+off=0 message begin
+off=5 len=3 span[version]="1.1"
+off=8 version complete
+off=13 len=2 span[status]="OK"
+off=17 status complete
+off=17 len=4 span[header_field]="Host"
+off=22 header_field complete
+off=23 len=9 span[header_value]="localhost"
+off=34 header_value complete
+off=34 len=17 span[header_field]="Transfer-Encoding"
+off=52 header_field complete
+off=53 len=7 span[header_value]="chunked"
+off=62 header_value complete
+off=64 headers complete status=200 v=1/1 flags=208 content_length=0
+off=66 len=7 span[chunk_extension_name]="ilovew3"
+off=74 chunk_extension_name complete
+off=74 len=20 span[chunk_extension_value]=""I love; extensions""
+off=94 chunk_extension_value complete
+off=95 len=10 span[chunk_extension_name]="somuchlove"
+off=106 chunk_extension_name complete
+off=106 len=23 span[chunk_extension_value]=""aretheseparametersfor""
+off=129 chunk_extension_value complete
+off=130 len=4 span[chunk_extension_name]="blah"
+off=135 chunk_extension_name complete
+off=135 len=3 span[chunk_extension_name]="foo"
+off=139 chunk_extension_name complete
+off=139 len=3 span[chunk_extension_value]="bar"
+off=143 chunk_extension_value complete
+off=144 chunk header len=5
+off=144 len=5 span[body]="hello"
+off=151 chunk complete
+off=153 len=8 span[chunk_extension_name]="blahblah"
+off=162 chunk_extension_name complete
+off=162 len=4 span[chunk_extension_name]="blah"
+off=167 chunk_extension_name complete
+off=168 chunk header len=6
+off=168 len=6 span[body]=" world"
+off=176 chunk complete
+off=179 chunk header len=0
+```
+
+
+## Unbalanced chunk extensions quoting
+
+<!-- meta={"type": "response"} -->
+```http
+HTTP/1.1 200 OK
+Host: localhost
+Transfer-Encoding: chunked
+
+5;ilovew3="abc";somuchlove="def; ghi
+hello
+6;blahblah;blah
+ world
+0
+
+```
+
+```log
+off=0 message begin
+off=5 len=3 span[version]="1.1"
+off=8 version complete
+off=13 len=2 span[status]="OK"
+off=17 status complete
+off=17 len=4 span[header_field]="Host"
+off=22 header_field complete
+off=23 len=9 span[header_value]="localhost"
+off=34 header_value complete
+off=34 len=17 span[header_field]="Transfer-Encoding"
+off=52 header_field complete
+off=53 len=7 span[header_value]="chunked"
+off=62 header_value complete
+off=64 headers complete status=200 v=1/1 flags=208 content_length=0
+off=66 len=7 span[chunk_extension_name]="ilovew3"
+off=74 chunk_extension_name complete
+off=74 len=5 span[chunk_extension_value]=""abc""
+off=79 chunk_extension_value complete
+off=80 len=10 span[chunk_extension_name]="somuchlove"
+off=91 chunk_extension_name complete
+off=91 len=9 span[chunk_extension_value]=""def; ghi"
+off=101 error code=2 reason="Invalid character in chunk extensions quoted value"
+```
+
+
+## Invalid OBS fold after chunked value
+
+<!-- meta={"type": "response" } -->
+```http
+HTTP/1.1 200 OK
+Transfer-Encoding: chunked
+  abc
+
+5
+World
+0
+
+
+```
+
+```log
+off=0 message begin
+off=5 len=3 span[version]="1.1"
+off=8 version complete
+off=13 len=2 span[status]="OK"
+off=17 status complete
+off=17 len=17 span[header_field]="Transfer-Encoding"
+off=35 header_field complete
+off=36 len=7 span[header_value]="chunked"
+off=45 len=5 span[header_value]="  abc"
+off=52 header_value complete
+off=54 headers complete status=200 v=1/1 flags=200 content_length=0
+off=54 len=1 span[body]="5"
+off=55 len=1 span[body]=cr
+off=56 len=1 span[body]=lf
+off=57 len=5 span[body]="World"
+off=62 len=1 span[body]=cr
+off=63 len=1 span[body]=lf
+off=64 len=1 span[body]="0"
+off=65 len=1 span[body]=cr
+off=66 len=1 span[body]=lf
+off=67 len=1 span[body]=cr
+off=68 len=1 span[body]=lf
+```
+