- From: Anne van Kesteren <annevk@opera.com>
- Date: Thu, 25 Nov 2010 17:31:55 +0100
On Fri, 12 Nov 2010 23:53:51 +0100, Nicholas Zakas <nzakas at yahoo-inc.com> wrote: > Just a quick question about the Last-Event-ID header. The spec currently > says: > >>> If the event source's last event ID string is not the empty string, >>> then a Last-Event-ID HTTP header must be included with the request, >>> whose value is the value of the event source's last event ID string, >>> encoded as UTF-8. > > Consider the following scenario: a connection is established and one of > the events has an id of "foo", so the last event ID of the event source > is now "foo". The connection drops and on reconnect, the header > Last-Event-ID: foo is sent per the spec. The next stream of events > coming through do not have any IDs. The connection is dropped again. > > The question is whether or not Last-Event-ID: foo should be sent a > second time? Technically, it is the last event ID of the event source, > and the spec never mentions resetting the last event ID outside of an > empty "id" field in the stream. WebKit and Opera both match the specification here. I have added a testcase for this behavior: http://tc.labs.opera.com/apis/EventSource/format-field-id-2.htm You can get the source code for the tests here: http://tc.labs.opera.com/svn If you want to contribute more tests following this style. Let me know! -- Anne van Kesteren http://annevankesteren.nl/
Received on Thursday, 25 November 2010 08:31:55 UTC