ContainerTiming area tracking when the painted region moves
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Description
In the specification we are tracking when paints happen in the viewport, and we use that to only report new entries when the paint happens to an area that has not been painted before.
Now, the problem is: sometimes a node changes its position, because of layout shifts, or because of the scroll.
We need to define how the painted region reacts to this.
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start with the specification's existing rules for tracking paints in the viewport and reporting newly painted areas. Consider how the painted region should respond when a node moves because of layout shifts or scrolling; done means the specification clearly defines that behavior.
Written by the indexing model from the issue text.
Assessment
- Domain
- documentation
- Issue type
- Feature
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100