whatwg / whatwg/html

Normatively define the “elementtiming” content attribute

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Dominant language
HTML
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Description

https://wicg.github.io/element-timing/#dom-element-elementtiming defines an elementtiming IDL attribute and states:

The elementTiming attribute must reflect the element’s "elementtiming" content attribute.

…but nowhere does the spec actually define the elementtiming content attribute.

Even if sufficient implementor interest for the feature has not be demonstrated yet, a PR with the patch for adding it to the HTML spec can (should) be opened.

The patch should provide the normal details the HTML spec defines for other content attributes, including datatype/ microsyntax (allowed values) for the attributes, as well as stating which elements are allowed to have the attribute, etc.

cc @npm1, @yoavweiss

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Research direction

Start with the linked Element Timing specification definition and the HTML Standard's existing content-attribute definitions. Determine the allowed elements, datatype, and microsyntax for the elementtiming content attribute; done means those normative details are defined and its relationship to the elementTiming IDL attribute is clear.

Written by the indexing model from the issue text.

Assessment

Tech stack
html
Domain
documentation
Issue type
Feature
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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