mdn / mdn/browser-compat-data

Intrinsic & Extrinsic Sizing - Incorrectly marked as supported

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browser:multiple data:css
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Description

What information was incorrect, unhelpful, or incomplete?

Currently, MDN browser compat data reports Intrinsic & Extrinsic Sizing as fully implemented.

What did you expect to see?

I expected the truth that these are not fully implemented across Chrome and Firefox.

Did you test this? If so, how?

I didn't test it. This is very complicated.

I encountered min-height: min-content not working in Firefox and Chrome against what BCD reports, while in Safari it does. I didn't test any further, since there seem to be a lot of bugs around this. Also there are more sizing values (max-content, fit-content) as well as sizing properties (max-height, min-width, max-width, height, width) that complicate things further.

Can you link to any release notes, bugs, pull requests, or MDN pages related to this?

The Caniuse-own entry lists some bugs.

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start with the linked Caniuse intrinsic-width entry and compare it with the browser compatibility data for intrinsic sizing. Review the reported behavior for min-content, max-content, and fit-content across the affected properties and browsers; done means the data no longer reports full support where the evidence shows it is incomplete.

Written by the indexing model from the issue text.

Assessment

Tech stack
css
Domain
documentation, web-dev
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
35/100

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