whatwg/html

Investigation requested for beforeprint/afterprint

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#5,096 opened on Nov 18, 2019

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 (4 comments) (0 reactions) (0 assignees)HTML (2,520 forks)batch import
clarificationgood first issueneeds tests

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Description

If you have A nests B nests C nests D and the user decides to print B (not sure any user agent provides UI for that, but let's assume there is), the specification suggests events in B and C, not D. Is that really what we want?

Also, if you have A nests B1 and B2, what's the order of the events? Does it matter if either B1 or B2 is cross-site? (Is it quicker than postMessage()?)

Marking this as a good first issue as the first step needed here is writing tests for these scenarios, which is relatively straightforward, albeit a bit tedious perhaps. If there are any questions around getting started with tests, do let me know.

Contributor guide

Research direction
Write tests for beforeprint/afterprint event order in nested browsing contexts and cross site scenarios.
Tech stack
html
Domain
web dev
Issue type
Research
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Mostly clear
Prerequisites
HTML
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
70