added skip for ssr and non-browser environments

[break-stuff]

Description

This crashes in SSR environments (the popover polyfill works fine).

Related Issue(s)

Reminder to add related issue(s), if available.

Steps to test/reproduce

Importing directly from @oddbird/css-anchor-positioning crashes in SSR and JSDOM environments.

We were able to get it working by importing the function and calling it, but it would be nice to have it behave consistently like the popover polyfill.

import polyfill from '@oddbird/css-anchor-positioning/fn';

if (typeof window !== 'undefined') {
  polyfill()
}

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Provide screenshots/animated gifs/videos if necessary.

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[jamesnw]

Thanks for your contribution!

[jamesnw]

The lint and test checks are stuck for some reason. It seems like the recommendation is to close the PR and re-open, so I'm going to try that. Apologies for the notification noise.

[break-stuff]

It looks like the problem is NODE_OPTIONS='--no-experimental-strip-types'. It's causing the CI tests to silently fail.

[jamesnw]

@break-stuff It looks like it's still stalled out. I've opened #378 to track that issue.

[break-stuff]

@jamesnw I may have found the issue. There are failing tests, but they are being masked by the script parallelization. I updated them to now stop when any of the scripts fail.

I was able to find the tests that were failing and skipped them until further investigation.

[break-stuff]

@jamesnw are you able to kick off CI actions again?

[jamesnw]

It's currently hanging, and I'm pretty sure it did run last week .

I'm grateful for your help troubleshooting the workflow, but I wonder about keeping that investigation separate from this PR. I'll ask some questions I have about the proposed solution in #378.

[break-stuff]

I reverted my previous changes. Tests are passing after updating to node v24.12.0. I left the --race flags in because it still hangs locally without them.

[break-stuff]

Removed --race flag, as it was blocking tests for some people.

[jamesnw]

Thanks for your patience!

[break-stuff]

Thank you, @jamesnw! I really appreciate your help!