OPTIONS http request gives spaces instead of commas in "Allow" header

[Hanno Böck]

The HTTPS OPTIONS method allows to query a server for the supported HTTP methods. The server is supposed to reply with an "Allow" header with a comma-separated list. However the launchpad server gives a space-separated list.

Example:
curl -sI -X OPTIONS https://launchpad.net/|grep Allow:
gives output:
Allow: GET HEAD POST

For a correct server:
curl -sI -X OPTIONS https://www.ubuntu.com/|grep Allow:
gives:
Allow: GET, HEAD, OPTIONS

I can't judge where the bug is, as I don't know how the infrastructure of launchpad.net works. It may be a bug in a load balancer or proxy in front of the real software.

[Colin Watson (cjwatson)]

Thanks. It's in the Launchpad codebase itself, in fact. I'll get it fixed.

[Launchpad QA Bot (lpqabot)]

Fixed in stable r18463 <http://bazaar.launchpad.net/~launchpad-pqm/launchpad/stable/revision/18463>.

[Colin Watson (cjwatson)]

$ curl -sI -X OPTIONS https://launchpad.net/|grep Allow:
Allow: GET, HEAD, POST

Thanks again for the report.