#326: Element Timing API for images

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Opened Nov 16, 2018

こんにちはTAG!

I'm requesting a TAG review of:

Further details (optional):

  • Relevant time constraints or deadlines: Chrome has implemented this feature but we haven't fleshed out the spec yet. We'd probably like to launch early 2019.
  • We have a Chrome launch bug (sorry, Googlers only), which received privacy and security approvals.

Security and Privacy Questionnaire: https://docs.google.com/document/d/15T51ya-7GCtDQGF_ukGAPXBkygI6WFZBV9e9Bc8mjic/edit

You should also know that...

The current proposal is for ElementTiming for <img> elements, but we received feedback at TPAC that including background images in our first iteration could also be very helpful. So we may add that. Later versions of this API would like to expose other elements, but for most we will need to think about text rendering timing. We are deferring that to a future version of this API.

We'd prefer the TAG provide feedback as (please select one):

  • leave review feedback as a comment in this issue and @-notify @npm1 and @tdresser

Discussions

2019-07-03

Minutes

(And Event Timing API)

Dan: Was there a breakout..?

David: I was supposed to and I didn't :(

... I have been being productive and ignoring my to-do list.

Dan: Will you be able to get one organised?

David: Let's bump this two weeks because I suspect holidays will interfere this week.

... Same goes for the next topic (Event Timing API - @dbaron, @kenchris)

Dan: Are they blocked on us?

David: Not that I'm aware of

2019-07-17

Minutes

David: the order has the harder one first. there was a bunch of stuff related to text that wasn't fleshed out last time we looked. we should probably split images and texts into different reivews

kenneth: they also had questions re shadow dom, and wanted to move this to web performance

David: (currently WICG)

torgo: doing something useful and specific sounds like the right approach to me.

David: Yes. We should probably open the other review ourselves for text and close this one.

Originally this wasn't meant to include text... we tried to add it in, but that probably wasn't ideal.

Assuming Kenneth is okay with the images part

Kenneth: Yes