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fix: don't show EPIPE error #32873

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fix: don't show EPIPE error #32873

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33f8822
fix: don't show EPIPE error
alexsch01 Nov 3, 2025
bd5a6a2
Update CHANGELOG.md
alexsch01 Nov 3, 2025
e50403e
Merge branch 'develop' into hide-epipe-error
AtofStryker Nov 6, 2025
daeab02
add debug statements
alexsch01 Nov 8, 2025
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1 change: 1 addition & 0 deletions cli/CHANGELOG.md
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Original file line number Diff line number Diff line change
Expand Up @@ -24,6 +24,7 @@ _Released 11/4/2025_
- Fixed an issue with grouped console prop items having a hard to read blue color in the console log and duplicate `:` characters being displayed. Addressed in [#32776](https://github.com/cypress-io/cypress/pull/32776).
- Added more context to the error message shown when [`cy.prompt()`](https://docs.cypress.io/api/commands/prompt) fails to download. Addressed in [#32822](https://github.com/cypress-io/cypress/pull/32822).
- Fixed an issue where absolute file paths were not correctly determined from the source map when the source map root was updated. Fixes [#32809](https://github.com/cypress-io/cypress/issues/32809).
- Fixed an issue where a EPIPE error shows up after CTRL+C is done in terminal. Fixes [#30659](https://github.com/cypress-io/cypress/issues/30659). Addressed in [#32873](https://github.com/cypress-io/cypress/pull/32873).

**Misc:**

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14 changes: 12 additions & 2 deletions packages/data-context/src/data/ProjectConfigIpc.ts
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Expand Up @@ -157,7 +157,12 @@ export class ProjectConfigIpc extends EventEmitter {

let resolved = false

this._childProcess.on('error', (err) => {
this._childProcess.on('error', (err: NodeJS.ErrnoException) => {
if (err.code === 'EPIPE') {
debug('EPIPE error in loadConfig() of child process %s', err)
return
}
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@cursor cursor bot Nov 8, 2025

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Bug: Unhandled Errors: Promises Hang Forever

When an EPIPE error occurs, the handler returns early without resolving or rejecting the promise, causing loadConfig() to hang indefinitely. The promise expects either a loadConfig:reply or loadConfig:error event to settle, but the early return prevents proper cleanup and leaves callers waiting forever.

Fix in Cursor Fix in Web


debug('unhandled error in child process %s', err)
this.handleChildProcessError(err, this, resolved, reject)
reject(err)
Expand Down Expand Up @@ -229,7 +234,12 @@ export class ProjectConfigIpc extends EventEmitter {
return new Promise((resolve, reject) => {
let resolved = false

this._childProcess.on('error', (err) => {
this._childProcess.on('error', (err: NodeJS.ErrnoException) => {
if (err.code === 'EPIPE') {
debug('EPIPE error in registerSetupIpcHandlers() of child process %s', err)
return
}
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@cursor cursor bot Nov 8, 2025

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Bug: Early Return Traps Promises Indefinitely

When an EPIPE error occurs, the handler returns early without resolving or rejecting the promise, causing registerSetupIpcHandlers() to hang indefinitely. The promise expects either a setupTestingType:reply or setupTestingType:error event to settle, but the early return prevents proper cleanup and leaves callers waiting forever.

Fix in Cursor Fix in Web


this.handleChildProcessError(err, this, resolved, reject)
reject(err)
})
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