Fix uncaught promise rejection on loading cancellation#669
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paulsmirnov wants to merge 3 commits into
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Introduce CancellationError class (consistent with the existing ParsingError and OutOfMemoryError) and use it across all abort paths. Co-authored-by: GitHub Copilot <copilot@github.com>
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coverage: 25.587% (+0.01%) from 25.577% — 616-uncaught-in-promise-error-operation-cancelled into main |
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Description
Fixes #616.
When a load operation was cancelled (e.g. by calling
load()again before the previous one finished), the internal promise chain rejected with an unhandled error, causing an "Uncaught (in promise)" console error.CancellationErrorclass, consistent with the existingParsingErrorandOutOfMemoryErrorCancellationErroracross all abort paths inFileLoader,XHRLoader, andParserMiew.load()so the promise resolves normally on cancellation rather than rejectingAlso fix
ParsingErrorandOutOfMemoryErrorto properly extendError(prototype chain andnameproperty).Type of changes
Checklist
yarn run ci: lint and tests pass locally with my changes.