[Sentry Auto-Fix] DOCS-2J9: TypeError: terminated (#59287)

Co-authored-by: Copilot <198982749+Copilot@users.noreply.github.com>
Co-authored-by: Ebonsignori <17055832+Ebonsignori@users.noreply.github.com>

Author: Ebonsignori

src/observability/lib/should-log-exception.ts

@@ -0,0 +1,27 @@
+export type ErrorWithCode = Error & {
+  code: string
+  statusCode?: number
+  status?: string
+}
+
+export function shouldLogException(error: ErrorWithCode) {
+  const IGNORED_ERRORS = [
+    // Client connected aborted
+    'ECONNRESET',
+  ]
+
+  if (IGNORED_ERRORS.includes(error.code)) {
+    return false
+  }
+
+  // "TypeError: terminated" is thrown by Node.js's undici fetch implementation
+  // when a connection is aborted by the remote server. This is a transient
+  // network error (similar to ECONNRESET) that occurs during proxied requests
+  // to archived enterprise pages and shouldn't be reported to Sentry.
+  if (error.name === 'TypeError' && error.message === 'terminated') {
+    return false
+  }
+
+  // We should log this exception
+  return true
+}

src/observability/middleware/handle-errors.ts

@@ -1,6 +1,7 @@
 import type { NextFunction, Response } from 'express'
 
 import FailBot from '../lib/failbot'
+import { shouldLogException, type ErrorWithCode } from '../lib/should-log-exception'
 import { nextApp } from '@/frame/middleware/next'
 import { setFastlySurrogateKey, SURROGATE_ENUMS } from '@/frame/middleware/set-fastly-surrogate-key'
 import { errorCacheControl } from '@/frame/middleware/cache-control'
@@ -9,26 +10,6 @@ import { ExtendedRequest } from '@/types'
 
 const DEBUG_MIDDLEWARE_TESTS = Boolean(JSON.parse(process.env.DEBUG_MIDDLEWARE_TESTS || 'false'))
 
-type ErrorWithCode = Error & {
-  code: string
-  statusCode?: number
-  status?: string
-}
-
-function shouldLogException(error: ErrorWithCode) {
-  const IGNORED_ERRORS = [
-    // Client connected aborted
-    'ECONNRESET',
-  ]
-
-  if (IGNORED_ERRORS.includes(error.code)) {
-    return false
-  }
-
-  // We should log this exception
-  return true
-}
-
 async function logException(error: ErrorWithCode, req: ExtendedRequest) {
   if (process.env.NODE_ENV !== 'test' && shouldLogException(error)) {
     await FailBot.report(error, {

src/observability/tests/handle-errors.ts

@@ -0,0 +1,61 @@
+import { describe, expect, test } from 'vitest'
+
+import { shouldLogException, type ErrorWithCode } from '../lib/should-log-exception'
+
+// Helper function to create test errors with code property
+function createError(message: string, name: string = 'Error', code: string = ''): ErrorWithCode {
+  const error = new Error(message) as ErrorWithCode
+  error.name = name
+  error.code = code
+  return error
+}
+
+describe('shouldLogException', () => {
+  describe('ECONNRESET errors', () => {
+    test('should not log ECONNRESET errors', () => {
+      const error = createError('Connection reset', 'Error', 'ECONNRESET')
+
+      expect(shouldLogException(error)).toBe(false)
+    })
+  })
+
+  describe('TypeError: terminated filtering', () => {
+    test('should not log TypeError with exact message "terminated"', () => {
+      const error = createError('terminated', 'TypeError')
+
+      expect(shouldLogException(error)).toBe(false)
+    })
+
+    test('should log TypeError with different message', () => {
+      const error = createError('Cannot read property', 'TypeError')
+
+      expect(shouldLogException(error)).toBe(true)
+    })
+
+    test('should log TypeError with partial "terminated" message', () => {
+      const error = createError('connection terminated unexpectedly', 'TypeError')
+
+      expect(shouldLogException(error)).toBe(true)
+    })
+
+    test('should log non-TypeError with "terminated" message', () => {
+      const error = createError('terminated', 'Error')
+
+      expect(shouldLogException(error)).toBe(true)
+    })
+  })
+
+  describe('regular errors', () => {
+    test('should log regular errors', () => {
+      const error = createError('Something went wrong', 'Error')
+
+      expect(shouldLogException(error)).toBe(true)
+    })
+
+    test('should log errors with no code', () => {
+      const error = createError('Test error', 'Error')
+
+      expect(shouldLogException(error)).toBe(true)
+    })
+  })
+})