14:57:07 RRSAgent has joined #bpwgct 14:57:07 logging to http://www.w3.org/2008/02/05-bpwgct-irc 14:57:26 zakim, this will be BPWG 14:57:26 ok, francois; I see MWI_BPWG(BCTF)10:00AM scheduled to start in 3 minutes 14:58:19 Meeting: Mobile Web BPWG Content Transformation Teleconference 14:58:24 Date: 5 February 2008 14:58:34 Agenda: http://lists.w3.org/Archives/Public/public-bpwg-ct/2008Feb/0010.html 14:58:41 Regrets: Jo, Kemp 14:58:51 Chair: francois 14:58:56 RRSAgent, make logs public 14:59:02 RRSAgent, draft minutes 14:59:02 I have made the request to generate http://www.w3.org/2008/02/05-bpwgct-minutes.html francois 14:59:17 zakim, code? 14:59:17 the conference code is 2283 (tel:+1.617.761.6200 tel:+33.4.89.06.34.99 tel:+44.117.370.6152), francois 15:00:21 MWI_BPWG(BCTF)10:00AM has now started 15:00:28 +francois 15:00:37 +rob 15:01:23 Magnus has joined #bpwgct 15:01:46 zakim, code? 15:01:48 the conference code is 2283 (tel:+1.617.761.6200 tel:+33.4.89.06.34.99 tel:+44.117.370.6152), Magnus 15:02:19 + +46.3.17.4.aaaa 15:02:32 zakim, +46 is me 15:02:32 +Magnus; got it 15:03:32 +Bryan_Sullivan 15:04:13 http://en.wikipedia.org/wiki/Semla 15:04:15 +??P12 15:04:50 +[Vodaphone] 15:05:29 +SeanP 15:07:17 SeanP has joined #bpwgct 15:07:37 hgerlach has joined #bpwgct 15:07:43 AndrewS has joined #bpwgct 15:07:44 hi Guys 15:07:52 Bryan has joined #bpwgct 15:08:04 zakim, who's on the phone 15:08:04 I don't understand 'who's on the phone', francois 15:08:07 zakim, who's on the phone? 15:08:07 On the phone I see francois, rob, Magnus, Bryan_Sullivan, ??P12, [Vodaphone], SeanP 15:08:57 zakim, ??P12 is probably hgerlach 15:08:57 +hgerlach?; got it 15:09:26 zakim, [Vodaphone] is probably AndrewS 15:09:26 +AndrewS?; got it 15:10:04 ScribeNick: AndrewS 15:10:29 Topic: Next call 15:10:35 francois: 15:11:02 francois: not available for next call 15:11:16 Magnus: not available also 15:11:42 +1 15:11:45 Andrew: We will skip one week 15:11:49 +1 15:12:16 Topic: CT-proxy vs CT-gateway 15:12:39 francois: Re. discussion on mailing list 15:13:24 ...Yves Lafon recommends that we use gateway since user-agent is being changed 15:13:45 q+ 15:14:08 ack Magnus 15:14:20 http://www.w3.org/TR/ct-landscape/ 15:14:26 ...using gateways could be confusing - we should continue to use proxy but define the term in the start 15:15:05 q+ 15:15:17 Magnus: This is mentioned in the terminology section and this is accepted terminology 15:15:19 -> http://www.w3.org/TR/2007/WD-ct-landscape-20071025/#terminologyNote CT landscape 15:16:19 Rob: A CT- node can behave as either proxy of gateway. We could just call it a "proxy/gateway" 15:17:23 francois: Wanted to draw this to the attention of the task force. We need to use terminology carefully when working with IETF. 15:18:11 q+ 15:18:32 ack magnus 15:18:39 Bryan: Understands terminology but in reality most proxies do more than the strict IETF definition. We should use CT-proxy. 15:18:48 +1 15:19:47 Magnus: Could distinguish between a conventional proxy and an intercepting proxy (transparent) 15:19:59 SeanP has joined #bpwgct 15:20:23 francois: Isn't a transparent proxy one that does not do anything? 15:21:02 Magnus: An intercepting proxy typically does something to the data flow 15:21:15 Topic: HTTP Cache-Control extensions 15:22:33 francois: Yves Lafon advised that there is no process to register HTTP header extensions and suggests that we use a draft IETF RFC 15:22:54 ...But this has long time scales 15:23:00 q+ 15:23:07 q+ 15:23:12 ack AndrewS 15:24:23 AndrewS: yes, I agree, it's not in the TF's charter. I'm a bit worried too on new HTTP headers as it doesn't address legacy browsers 15:27:00 ... use of HTTP headers is fine with future browsers, but we have to address the legacy base 15:27:03 q+ 15:27:07 ack bryan 15:29:06 -SeanP 15:29:06 ack SeanP 15:29:13 Bryan: We are focused on mobile use case. Focusing on this area will help us achieve our time lines. But it is useful to remember the broarder case of any browser content access. 15:29:14 -rob 15:30:01 +SeanP 15:30:57 francois: A draft IETF RFC for all content adaptation is more likely to have traction than one for just mobile access. 15:31:16 +rob 15:31:46 SeanP: We should remember legacy handsets but se could consider IETF draft as well. 15:32:42 francois: Writing a draft is not a problem but it would be difficult to present it to the HTTPBis working group. 15:33:41 ...Validating the draft could take a long time since HTTP RFC is for a bigger picture than just the mobile world 15:34:21 ...we need to take a decision: include IETF draft or not in our scope of work 15:34:32 -rob 15:35:14 ...we will have to focus on what we can do without changing headers 15:36:19 q+ 15:36:27 ack bryan 15:36:34 ...propose that we drop new cache-control headers. 15:37:17 Bryan: We must be careful not to exclude custom headers which are already used in many cases. 15:38:12 AndrewS: my understanding of HTTP RFC is that you can add some X- experimental headers 15:39:26 AndrewS: We use "x-
" already 15:39:54 francois: What are these types of header used for? 15:40:24 hgerlach: For example to get correct wallpaper for mobile device. 15:41:14 q+ 15:41:50 AndrewS: We now need to decide whether we are going to include custom headers or not. 15:42:24 ack SeanP 15:42:26 +??P9 15:43:28 SeanP: Custom headers or modified headers are similar. 15:44:04 francois: Problem is with extending cache-control headers rather than with using x- headers 15:44:23 ...we should try to restrict the use of x- headers. 15:45:18 hgerlach: CT is normally used for non mobile aware sites so these sites are unlikely to understand custom headers. 15:46:05 francois: Use of custom headers will only be understood by a few content servers. 15:46:45 hgerlach: We should always use original user-agent and try to always use original headers. 15:47:54 francois: We could use just x- headers which will not require us to register any extensions to existing headers. 15:48:27 q+ 15:48:35 ack bryan 15:48:40 hgerlach: New headers could be useful for new content servers. 15:49:24 -??P9 15:50:39 Bryan: What is the market for CT-proxies which will use custom headers between the browser and the CT-proxy. 15:51:03 q+ 15:51:18 ack bryan 15:51:24 q+ 15:51:47 francois: Headers are really needed between the CT-proxy and content servers. 15:52:31 Bryan: Could we take a resolution to limit our scope to non-CT-aware browsers? 15:52:52 ack SeanP 15:53:22 francois: We should consider the interaction between the CT-proxy and the user rather than the browser. 15:54:06 q+ 15:54:17 ack bryan 15:54:22 SeanP: We should stick to headers between the server and the proxy, not between the browser and the proxy. 15:57:12 Regarding HTTP new headers use, this is what I think: 15:57:12 - between the CT-proxy and the *browser*: no real interaction needed I would say 15:57:12 - between the CT-proxy and the user: doesn't have to be HTTP-based, using some other magic such as web-based format should be enough 15:57:12 - between the server and the CT-proxy: HTTP headers are the only way. 16:00:52 at least we should define a mobile OK header which can be "Mobile OK", "made for Mobile" or something else 16:03:52 -Bryan_Sullivan 16:04:57 francois: This could be done in other ways, on the page or using POWDER. 16:05:39 hgerlach: But POWDER always requires an additional fetch. 16:05:55 ...We need a kind of "mini POWDER". 16:06:50 francois: We will have to stop. 16:07:17 bye 16:07:32 -AndrewS? 16:07:34 ...We need to summarise this on the mail list. I will try to do so. 16:07:59 -Magnus 16:08:01 -francois 16:08:11 -SeanP 16:08:12 zakim, list attendees 16:08:28 -hgerlach? 16:08:30 MWI_BPWG(BCTF)10:00AM has ended 16:08:34 Attendees were francois, rob, +46.3.17.4.aaaa, Magnus, Bryan_Sullivan, SeanP, hgerlach?, AndrewS? 16:08:42 sorry, francois, I don't know what conference this is 16:08:47 RRSAgent, draft minutes 16:08:47 I have made the request to generate http://www.w3.org/2008/02/05-bpwgct-minutes.html francois 16:35:27 RRSAgent, bye 16:35:27 I see no action items