The document discusses the status and plans for XMLHttpRequest. It notes that the specification reached TR publication in December 2012. There are test submissions from Microsoft, Ms2ger, and Opera. The WHATWG has made 14 commits to the spec. There are 13 open bugs. The plan is to finalize a baseline version as REC by 2013 focusing on implemented features, and a "bleeding edge" version addressing controversial issues with a goal of REC by 2014. Major issues include the behavior of overrideMimeType, HTTP authentication, and streaming responses.

1. XMLHttpRequest
Status, Plans and Issues
Web Apps F2F at San Jose
25th of April, 2013

2. Status
● TR Publication
– 6 Dec, 2012 [1]
● Test
– hg: submissions/{Microsoft (28)
[2]
, Ms2ger (3)
[3]
, Opera (92)
[4]
}
– Github: mirror at w3-test.org [5]
●
WHATWG [6]
– 14 commits (22 Nov, 2012 ~ 23 Apr, 2013)
●
Issues[7]
– 13 bugs in NEW status

3. Plan
● XHR.REC-track (Baseline version)
– Aim: Achieve REC within 2013 (Single FPWD/LC on June/July time frame)
● To specify features that are widely implemented and deployed today
● To finalize the IP commitments by WebApps' members
– Title: XMLHttpRequest Level 1
– Out of scope: CORS, data: URL, HTTP auth, overrideMimeType?,
Progress Events?
● XHR.Bleeding-edge
– Aim: Validate full scope and achieve REC ASAP (before TPAC 2014?)
● Resolve controversial issues
● Focus on testing activities to expedite interop
– Title: XMLHttpRequest Level 2
– Scope: Current features + Stream response type

4. Issues
● Major issues
– overrideMimeType behavior
– HTTP Authentication
– Stream data type and incremental response
(For all the filed bugs see [7])
** Also, we need to expedite interop based on testing!

5. Reference
[1] http://www.w3.org/TR/2012/WD-XMLHttpRequest-20121206/
[2] https://dvcs.w3.org/hg/webapps/file/3e8f9a520395/XMLHttpRequest/tests/submissions/Microsoft
[3] https://dvcs.w3.org/hg/webapps/file/3e8f9a520395/XMLHttpRequest/tests/submissions/Ms2ger
[4] https://dvcs.w3.org/hg/webapps/file/3e8f9a520395/XMLHttpRequest/tests/submissions/Opera
[5] http://w3c-test.org/web-platform-tests/master/XMLHttpRequest/
[6] https://github.com/whatwg/xhr/commits/master
[7] https://www.w3.org/Bugs/Public/buglist.cgi?query_format=advanced&bug_status=NEW&component=XHR

6. Reference
[1] http://www.w3.org/TR/2012/WD-XMLHttpRequest-20121206/
[2] https://dvcs.w3.org/hg/webapps/file/3e8f9a520395/XMLHttpRequest/tests/submissions/Microsoft
[3] https://dvcs.w3.org/hg/webapps/file/3e8f9a520395/XMLHttpRequest/tests/submissions/Ms2ger
[4] https://dvcs.w3.org/hg/webapps/file/3e8f9a520395/XMLHttpRequest/tests/submissions/Opera
[5] http://w3c-test.org/web-platform-tests/master/XMLHttpRequest/
[6] https://github.com/whatwg/xhr/commits/master
[7] https://www.w3.org/Bugs/Public/buglist.cgi?query_format=advanced&bug_status=NEW&component=XHR