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Update AbortController to more recent polyfill#54275

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wolfgang42:wolf/abortcontroller-polyfill
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Update AbortController to more recent polyfill#54275
wolfgang42 wants to merge 1 commit into
facebook:mainfrom
wolfgang42:wolf/abortcontroller-polyfill

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@wolfgang42
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@wolfgang42 wolfgang42 commented Oct 25, 2025

Summary:

The abort-controller package hasn't been updated since 2019, and is missing a number of useful features from the current DOM specification. So, switch to abortcontroller-polyfill to get a more modern implementation.

Fixes #42042, fixes #50015.

Changelog:

[General] [Changed] - Improve AbortController API support

Test Plan:

I attempted to run packages/react-native/src/private/webapis/dom/events/__tests__/EventTarget-itest.js, which exercises AbortController, but encountered problems getting fantom set up correctly; I am therefore relying on CI (and the assumption that the upstream package knows what they’re doing).

The `abort-controller` package hasn't been updated since 2019, and is
missing a number of useful features from the current DOM specification.
So, switch to `abortcontroller-polyfill` to get a more modern
implementation.

Fixes facebook#42042 and facebook#50015.
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meta-cla Bot commented Oct 25, 2025

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@meta-cla meta-cla Bot added the CLA Signed This label is managed by the Facebook bot. Authors need to sign the CLA before a PR can be reviewed. label Oct 25, 2025
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@wolfgang42 wolfgang42 marked this pull request as ready for review October 25, 2025 18:21
@facebook-github-bot facebook-github-bot added the Shared with Meta Applied via automation to indicate that an Issue or Pull Request has been shared with the team. label Oct 25, 2025
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meta-codesync Bot commented Oct 25, 2025

@robhogan has imported this pull request. If you are a Meta employee, you can view this in D85507864.

@robhogan
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Importing to run through internal CI, but this LGTM on the face of it, thanks @wolfgang42!

@wolfgang42
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@robhogan I can see that CI failed but no further details, LMK if there’s anything I can do to help.

@mozzius
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mozzius commented Nov 1, 2025

fyi, I found that abortcontroller-polyfill uses DOMException for AbortSignal.timeout, which isn't available in React Native.

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fyi, I found that abortcontroller-polyfill uses DOMException for AbortSignal.timeout, which isn't available in React Native.

yes, react native doesnt support DOMException, i think we should use Error instead of DOMException?

@wolfgang42
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yes, react native doesnt support DOMException

I see DOMException.js in the source code, so this claim is somewhat surprising to me, but I haven't dug into this further. (Maybe it’s used internally but not exported as a global for some reason?)

i think we should use Error instead of DOMException?

NodeJS simply provides DOMException and I think that’s the right behavior for react-native, too: otherwise AbortController will have subtly nonstandard behavior that might cause surprises.


However, I’ve been having a great deal of trouble getting the Fantom tests up and running to validate any changes: it seems like they depend on some specific versions(s) of gradle/gcc and there doesn’t seem to be any documentation on what kind of environment they need. @robhogan Any more context you have here would be appreciated; otherwise it’s going to be guess-and-check changes.

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This PR is stale because it has been open 180 days with no activity. Remove stale label or comment or this will be closed in 7 days.

@react-native-bot react-native-bot added the Stale There has been a lack of activity on this issue and it may be closed soon. label May 25, 2026
@wolfgang42
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I still haven’t heard back from @robhogan in re why the CI has failed, but otherwise as far as I know this is still a good change to land.

@react-native-bot react-native-bot removed the Stale There has been a lack of activity on this issue and it may be closed soon. label May 30, 2026
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AbortSignal/AbortController doesn't work AbortSignal, TypeError: AbortSignal.timeout is not a function

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