Throws an AbortSignal's reason if the signal is aborted. This convenience method can be used by signal-handling functions to check a signal's abort status and propagate the abort reason, e.g. after async operations that might change a signal's state.


AbortSignal-handling functions often need to check the signal's status and propagate the error if the signal has been aborted. AbortSignal.throwIfAborted provides a convenient and consistent way to do this.



Specification link

Final published standard: Recommendation, Living Standard, Candidate Recommendation, or similar final form

Status in Chromium


Enabled by default (tracking bug)

Consensus & Standardization

After a feature ships in Chrome, the values listed here are not guaranteed to be up to date.


Intent to Prototype url

Intent to Prototype thread

Last updated on 2022-04-26