Fetch: header names are exposed in lowercase and values separated by 0x2C 0x20

[annevk]

See whatwg/fetch#504 and
whatwg/xhr#130.

[wpt-pr-bot]

Notifying @Manishearth, @caitp, @emilio, @hallvors, @ibelem, @jdm, @jungkees, @kangxu, @mathiasbynens, @ronkorving, @wisniewskit, and @youennf. (Learn how reviewing works.)

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Firefox (nightly channel)

Testing web-platform-tests at revision e22f41848f05f6dabffeb726f5fbc58b9882976f
Using browser at version BuildID 20170306110339; SourceStamp 966464a68a2cb3ca1125808e34abb5c1d34e3797
Starting 10 test iterations
All results were stable

All results

2 tests ran

/XMLHttpRequest/getallresponseheaders-cl.htm

Subtest	Results	Messages
	OK
Casing of known headers	FAIL	assert_equals: expected "content-length: 0\r\n" but got "Content-Length: 0\r\n"
Casing of known headers 1	FAIL	assert_regexp_match: expected object "/content-TYPE/" but got "Host: web-platform.test:8000\r\nUser-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:54.0) Gecko/20100101 Firefox/54.0\r\nAccept: */*\r\nAccept-Language: en-US,en;q=0.5\r\nAccept-Encoding: gzip, deflate\r\nReferer: http://web-platform.test:8000/XMLHttpRequest/getallresponseheaders-cl.htm\r\nTHIS-IS-A-TEST: 1, 2\r\nContent-Type: x/x\r\nConnection: keep-alive\r\n"
Casing of known headers 2	FAIL	assert_regexp_match: expected object "/THIS-is-A-test: 1, 2/" but got "Host: web-platform.test:8000\r\nUser-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:54.0) Gecko/20100101 Firefox/54.0\r\nAccept: */*\r\nAccept-Language: en-US,en;q=0.5\r\nAccept-Encoding: gzip, deflate\r\nReferer: http://web-platform.test:8000/XMLHttpRequest/getallresponseheaders-cl.htm\r\nTHIS-IS-A-TEST: 2\r\norigin: http://web-platform.test:8000\r\nConnection: keep-alive\r\n"

/fetch/api/headers/headers-combine.html

Subtest	Results	Messages
	OK
Create headers using same name for different values	FAIL	assert_equals: expected "doubleValue1, doubleValue2" but got "doubleValue1,doubleValue2"
Check delete and has methods when using same name for different values	PASS
Check set methods when called with already used name	PASS
Check append methods when called with already used name	FAIL	assert_equals: expected "singleValue, newSingleValue" but got "singleValue,newSingleValue"

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View the complete job log.

Chrome (unstable channel)

Testing web-platform-tests at revision e22f41848f05f6dabffeb726f5fbc58b9882976f
Using browser at version 58.0.3029.6 dev
Starting 10 test iterations
All results were stable

All results

2 tests ran

/XMLHttpRequest/getallresponseheaders-cl.htm

Subtest	Results	Messages
	OK
Casing of known headers	FAIL	assert_equals: expected "content-length: 0\r\n" but got "CONTENT-LENGTH: 0\r\n"
Casing of known headers 1	PASS
Casing of known headers 2	FAIL	assert_regexp_match: expected object "/THIS-is-A-test: 1, 2/" but got "Host: web-platform.test:8000\r\nConnection: keep-alive\r\nUser-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.6 Safari/537.36\r\nthis-is-a-test: 1,2\r\nAccept: */*\r\nReferer: http://web-platform.test:8000/XMLHttpRequest/getallresponseheaders-cl.htm\r\nAccept-Encoding: gzip, deflate, sdch\r\nAccept-Language: en-US,en;q=0.8\r\n"

/fetch/api/headers/headers-combine.html

Subtest	Results	Messages
	OK
Create headers using same name for different values	FAIL	assert_equals: expected "doubleValue1, doubleValue2" but got "doubleValue1,doubleValue2"
Check delete and has methods when using same name for different values	PASS
Check set methods when called with already used name	PASS
Check append methods when called with already used name	FAIL	assert_equals: expected "singleValue, newSingleValue" but got "singleValue,newSingleValue"