fix(fetch): preserve error code in decompression pipeline for retry logic#40946
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SebTardif wants to merge 1 commit into
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fix(fetch): preserve error code in decompression pipeline for retry logic#40946SebTardif wants to merge 1 commit into
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yury-s
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The change looks good, but please add a test.
…ogic When a compressed HTTP response (gzip/br/deflate) encounters a network error like ECONNRESET during body streaming, the pipeline error callback and body error handler were wrapping the original error in a new Error, destroying the .code property. The retry logic in _sendRequestWithRetries checks e.code !== 'ECONNRESET' to decide whether to retry, so retries never happened for compressed responses. Fix: check if the error is a network error (ECONNRESET, EPIPE, ECONNABORTED) and pass it through unwrapped so the retry logic can see the code. Only wrap non-network errors as decompression failures.
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What this PR does
Fixes
maxRetriesbeing silently broken for compressed HTTP responses.In
packages/playwright-core/src/server/fetch.ts, the decompression pipeline error callback wraps all errors innew Error(...), destroying the.codeproperty. The retry logic in_sendRequestWithRetriescheckse.code !== 'ECONNRESET'to decide whether to retry. Since the wrapped error has no.code, retries never happen for compressed responses (the vast majority of real-world HTTP traffic, sinceaccept-encoding: gzip,deflate,bris sent by default).Fix: Added
isNetworkConnectionError()helper that checks forECONNRESET,EPIPE,ECONNABORTED. Network errors are passed through unwrapped to preserve.code; only actual decompression failures get wrapped.AI Disclosure
Developed with AI assistance (Grok by xAI) in a human-in-the-loop workflow. All code reviewed and verified by the human author.