W3C

Web Performance Working Group Teleconference

11 Feb 2015

Attendees

Present
Plh, Yoav, Ilya, Todd
Regrets
Eli
Chair
plh
Scribe
plh

Contents


<trackbot> Date: 11 February 2015

NEL

Ilya: I'm making progress on feedback
... looking for feeback on removing naigation
... embedded case is missing
... if we remove navigation restriction, it becomes pretty simple

Yoav: I think the use case is useful
... concern is security
... should we expose it?
... need to get security folks involved

Ilya: we wouldn't be reporting info that would have been reported if it had been succesful
... but third party reports are more problematic
... third.com has a resource, someone tries to load on a different site. That should be fine to report

Yoav: notifying the embeder might be problematic

Ilya: right. maybe opt-in policy

Todd: still thinking it through

Tobin: do we have an idea of the clear scenarios?

Ilya: no, we have an example section
... but we could add it
... that's good idea
... I'll folllow with a new draf

PerformanceObservers

Plh: changing the type of PerformanceEntryList is problematic
... right now, it's an array
... forEach, map, filter, etc
... we would remove those functions otherwise

interface PerformanceEntryList {
  getter PerformanceEntry item(unsigned long index);
  readonly attribute unsigned long length;
  PerformanceEntryList getEntriesByName(name);
}

Plh: I'll follow up on the list
... otherwise, proposal looks fine

Tobin: I like the idea
... better object model for mass events
... will keep thinking about it

??: in general, high level is looking good

Server TIming

Yoav: looks good
... was wondering about the possibility of allocating more
... but other than that, it's fine
... looks useful as well
... why 150 limit?

Ilya: copied from resource timing
... we could change it

Yoav: why not start higher?

[...]

Yoav: ok, makes sense

Resolved: Server Timing is published as FPWD

User Timing

Plh: can't we remove SYNTAX_ERR limitation?

Ilya: don't see any reason why not

Plh: negative duration restriction...

[back and forth around whether negative values are useful]

??: given the scenario in the email, it sounds legitimate

Todd: I'll test it in IE

nav timing 2

plh: Why can't we get performance.getEntriesByType("navigation") implemented?

<scribe> ACTION: plh to send an email about what's new in navtiming2 [recorded in http://www.w3.org/2015/02/11-webperf-minutes.html#action01]

<trackbot> Created ACTION-150 - Send an email about what's new in navtiming2 [on Philippe Le Hégaret - due 2015-02-18].

RAF next steps

Ilya: we also redirect handling for R and NT

<scribe> ACTION: plh to send an email on RAF [recorded in http://www.w3.org/2015/02/11-webperf-minutes.html#action02]

<trackbot> Created ACTION-151 - Send an email on raf [on Philippe Le Hégaret - due 2015-02-18].

Automatic publishing

plh: can we allow editors to publish in /TR if the editor is willing to send email to the list?

Resolved: Editors are allowed to update WD in /TR

Service Workers support for window.performance/resourcetiming/usertiming

Ilya: service workers wants to have access to window.performance, RT and UT
... needs to update the spec to not specifically call out window

??: could that be addressed by performance observers?

Ilya: that's different
... I'll take a look at it

<scribe> ACTION: plh to make it clear that duration can be negative in UT [recorded in http://www.w3.org/2015/02/11-webperf-minutes.html#action03]

<trackbot> Created ACTION-152 - Make it clear that duration can be negative in ut [on Philippe Le Hégaret - due 2015-02-18].

Summary of Action Items

[NEW] ACTION: plh to make it clear that duration can be negative in UT [recorded in http://www.w3.org/2015/02/11-webperf-minutes.html#action03]
[NEW] ACTION: plh to send an email about what's new in navtiming2 [recorded in http://www.w3.org/2015/02/11-webperf-minutes.html#action01]
[NEW] ACTION: plh to send an email on RAF [recorded in http://www.w3.org/2015/02/11-webperf-minutes.html#action02]
 
[End of minutes]

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$Date: 2015/02/12 15:42:45 $