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Bug fix proposed for ethers.js WebSocket provider that silently crashes Node.js apps

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A developer has identified and submitted a fix for a bug in the ethers.js WebSocketProvider that causes Node.js production processes to crash without warning. The issue arises when an eth_subscribe call returns a JSON-RPC error — such as an authentication failure or a 500 gateway response — leaving an unhandled promise rejection that terminates the process. Because the subscription promise is stored privately with only a .then() handler, application-level try/catch blocks cannot intercept the error. The fix replaces the incomplete promise chain with a .then(onFulfilled, onRejected) pattern that absorbs the rejection and emits an error event instead of crashing. A pull request addressing the issue has been opened against the ethers-io/ethers.js repository on GitHub.

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Bug fix proposed for ethers.js WebSocket provider that silently crashes Node.js apps · ShortSingh