fix: Redirect spammy electron stderr to a debug sink

.circleci/workflows.yml

@@ -1268,13 +1268,32 @@ commands:
 
   check-if-binary-exists:
     steps:
+      - run-on-dependencies:
+          package: internal-scripts
+          command: build
       - run:
           name: Check if binary exists, exit if it does
           command: |
             source ./scripts/ensure-node.sh
             yarn gulp e2eTestScaffold
             yarn check-binary-on-cdn --version $(node ./scripts/get-next-version.js) --type binary --file cypress.zip
 
+  run-on-dependencies:
+    parameters:
+      package:
+        description: Package to build all dependencies for. All dependencies in the
+          dependency chain must have a build script.
+        type: string
+      command:
+        description: Command to run on the dependencies.
+        type: string
+    steps:
+      - run:
+          name: Exec << parameters.command >> recursively on << parameters.package >>
+            dependencies.
+          command: |
+            yarn lerna run <<parameters.command>> --scope=<<parameters.package>> --include-dependencies
+
   build-and-package-binary:
     steps:
       - run:

cli/CHANGELOG.md

@@ -40,6 +40,7 @@ _Released 08/12/2025 (PENDING)_
 - Fixed an issue where `.fixture()` would not return updated content after the underlying file was modified via `.writeFile()`. The fixture cache is now properly invalidated when the backing file is written to, ensuring updated content is returned in subsequent `.fixture()` calls. Fixes [#4716](https://github.com/cypress-io/cypress/issues/4716).
 - Fixed an issue where `.fixture()` calls with a specified encoding would sometimes still attempt to parse the file based on its extension. Files with an explicit encoding are now always treated as raw content. Fixes [#32139](https://github.com/cypress-io/cypress/issues/32139).
 - Fixed an issue where `.fixture()` calls with different encoding options would return inconsistent content based on execution order. Fixes [#32138](https://github.com/cypress-io/cypress/issues/32138).
+- Filters content written to stderr to prevent Electron from spamming with inconsequential errors/warnings. This stderr content can be viewed by enabling the `cypress:internal-stderr` debug namespace. Fixes [#32070](https://github.com/cypress-io/cypress/issues/32070)
 - Fixed an issue where Angular Component Testing was printing extraneous warnings to the console by default. By default, errors only will now print to the console. This can still be overridden by passing in a custom webpack config or setting the `verbose` option inside your `angular.json`. Addresses [#26456](https://github.com/cypress-io/cypress/issues/26456).
 
 **Misc:**

cli/lib/exec/spawn.js

@@ -4,126 +4,13 @@ const cp = require('child_process')
 const path = require('path')
 const Promise = require('bluebird')
 const debug = require('debug')('cypress:cli')
-const debugVerbose = require('debug')('cypress-verbose:cli')
-
 const util = require('../util')
 const state = require('../tasks/state')
 const xvfb = require('./xvfb')
 const verify = require('../tasks/verify')
 const errors = require('../errors')
 const readline = require('readline')
 
-const isXlibOrLibudevRe = /^(?:Xlib|libudev)/
-const isHighSierraWarningRe = /\*\*\* WARNING/
-const isRenderWorkerRe = /\.RenderWorker-/
-// This is a warning that occurs when running in a container on Linux.
-// https://github.com/cypress-io/cypress/issues/29563
-// Example:
-// [437:1212/125803.148706:ERROR:zygote_host_impl_linux.cc(273)] Failed to adjust OOM score of renderer with pid 610: Permission denied (13)
-const isOOMScoreWarningRe = /Failed to adjust OOM score of renderer with pid/
-
-// Chromium (which Electron uses) always makes several attempts to connect to the system dbus.
-// This works fine in most desktop environments, but in a docker container, there is no dbus service
-// and Chromium emits several error lines, similar to these:
-
-// [1957:0406/160550.146820:ERROR:bus.cc(392)] Failed to connect to the bus: Failed to connect to socket /var/run/dbus/system_bus_socket: No such file or directory
-// [1957:0406/160550.147994:ERROR:bus.cc(392)] Failed to connect to the bus: Address does not contain a colon
-
-// These warnings are absolutely harmless. Failure to connect to dbus means that electron won't be able to access the user's
-// credential wallet (none exists in a docker container) and won't show up in the system tray (again, none exists).
-// Failure to connect is expected and normal here, but users frequently misidentify these errors as the cause of their problems.
-
-// https://github.com/cypress-io/cypress/issues/19299
-const isDbusWarning = /Failed to connect to the bus:/
-
-// Electron began logging these on self-signed certs with 17.0.0-alpha.4.
-// Once this is fixed upstream this regex can be removed: https://github.com/electron/electron/issues/34583
-// Sample:
-// [3801:0606/152837.383892:ERROR:cert_verify_proc_builtin.cc(681)] CertVerifyProcBuiltin for www.googletagmanager.com failed:
-// ----- Certificate i=0 (OU=Cypress Proxy Server Certificate,O=Cypress Proxy CA,L=Internet,ST=Internet,C=Internet,CN=www.googletagmanager.com) -----
-// ERROR: No matching issuer found
-const isCertVerifyProcBuiltin = /(^\[.*ERROR:cert_verify_proc_builtin\.cc|^----- Certificate i=0 \(OU=Cypress Proxy|^ERROR: No matching issuer found$)/
-
-/**
- * Electron logs benign warnings about Vulkan when run on hosts that do not have a GPU. This is coming from the primary Electron process,
- * and not the browser being used for tests.
- * Samples:
- * Warning: loader_scanned_icd_add: Driver /usr/lib/x86_64-linux-gnu/libvulkan_intel.so supports Vulkan 1.2, but only supports loader interface version 4. Interface version 5 or newer required to support this version of Vulkan (Policy #LDP_DRIVER_7)
- * Warning: loader_scanned_icd_add: Driver /usr/lib/x86_64-linux-gnu/libvulkan_lvp.so supports Vulkan 1.1, but only supports loader interface version 4. Interface version 5 or newer required to support this version of Vulkan (Policy #LDP_DRIVER_7)
- * Warning: loader_scanned_icd_add: Driver /usr/lib/x86_64-linux-gnu/libvulkan_radeon.so supports Vulkan 1.2, but only supports loader interface version 4. Interface version 5 or newer required to support this verison of Vulkan (Policy #LDP_DRIVER_7)
- * Warning: Layer VK_LAYER_MESA_device_select uses API version 1.2 which is older than the application specified API version of 1.3. May cause issues.
- */
-
-const isHostVulkanDriverWarning = /^Warning:.+(#LDP_DRIVER_7|VK_LAYER_MESA_device_select).+/
-
-/**
- * Electron logs benign warnings about Vulkan when run in docker containers whose host does not have a GPU. This is coming from the primary
- * Electron process, and not the browser being used for tests.
- * Sample:
- * Warning: vkCreateInstance: Found no drivers!
- * Warning: vkCreateInstance failed with VK_ERROR_INCOMPATIBLE_DRIVER
- *     at CheckVkSuccessImpl (../../third_party/dawn/src/dawn/native/vulkan/VulkanError.cpp:88)
- *     at CreateVkInstance (../../third_party/dawn/src/dawn/native/vulkan/BackendVk.cpp:458)
- *     at Initialize (../../third_party/dawn/src/dawn/native/vulkan/BackendVk.cpp:344)
- *     at Create (../../third_party/dawn/src/dawn/native/vulkan/BackendVk.cpp:266)
- *     at operator() (../../third_party/dawn/src/dawn/native/vulkan/BackendVk.cpp:521)
- */
-
-const isContainerVulkanDriverWarning = /^Warning: vkCreateInstance/
-
-const isContainerVulkanStack = /^\s*at (CheckVkSuccessImpl|CreateVkInstance|Initialize|Create|operator).+(VulkanError|BackendVk).cpp/
-
-/**
- * In Electron 32.0.0 a new debug scenario log message started appearing when iframes navigate to about:blank. This is a benign message.
- * https://github.com/electron/electron/issues/44368
- * Sample:
- * [78887:1023/114920.074882:ERROR:debug_utils.cc(14)] Hit debug scenario: 4
- */
-const isDebugScenario4 = /^\[[^\]]+debug_utils\.cc[^\]]+\] Hit debug scenario: 4/
-
-/**
- * In Electron 32.0.0 a new EGL driver message started appearing when running on Linux. This is a benign message.
- * https://github.com/electron/electron/issues/43415
- * Sample:
- * [78887:1023/114920.074882:ERROR:gl_display.cc(14)] EGL Driver message (Error) eglQueryDeviceAttribEXT: Bad attribute.
- */
-const isEGLDriverMessage = /^\[[^\]]+gl_display\.cc[^\]]+\] EGL Driver message \(Error\) eglQueryDeviceAttribEXT: Bad attribute\./
-
-/**
- * Mesa/GLX related warnings that occur in certain Linux environments without proper GPU support
- * or when running in containers. These are benign warnings that don't affect functionality.
- * Samples:
- * error: XDG_RUNTIME_DIR is invalid or not set in the environment.
- * MESA: error: ZINK: failed to choose pdev
- * glx: failed to create drisw screen
- */
-const isXdgRuntimeError = /^error: XDG_RUNTIME_DIR is invalid or not set/
-const isMesaZinkError = /^MESA: error: ZINK: failed to choose pdev/
-const isGlxDriverError = /^glx: failed to create drisw screen/
-
-const GARBAGE_WARNINGS = [
-  isXlibOrLibudevRe,
-  isHighSierraWarningRe,
-  isRenderWorkerRe,
-  isOOMScoreWarningRe,
-  isDbusWarning,
-  isCertVerifyProcBuiltin,
-  isHostVulkanDriverWarning,
-  isContainerVulkanDriverWarning,
-  isContainerVulkanStack,
-  isDebugScenario4,
-  isEGLDriverMessage,
-  isXdgRuntimeError,
-  isMesaZinkError,
-  isGlxDriverError,
-]
-
-const isGarbageLineWarning = (str) => {
-  return _.some(GARBAGE_WARNINGS, (re) => {
-    return re.test(str)
-  })
-}
-
 function isPlatform (platform) {
   return os.platform() === platform
 }
@@ -161,8 +48,6 @@ function getStdio (needsXvfb) {
 }
 
 module.exports = {
-  isGarbageLineWarning,
-
   start (args, options = {}) {
     const needsXvfb = xvfb.isNeeded()
     let executable = state.getPathToExecutable(state.getBinaryDir())
@@ -316,13 +201,6 @@ module.exports = {
           child.stderr.on('data', (data) => {
             const str = data.toString()
 
-            // bail if this is warning line garbage
-            if (isGarbageLineWarning(str)) {
-              debugVerbose(str)
-
-              return
-            }
-
             // if we have a callback and this explicitly returns
             // false then bail
             if (onStderrData && onStderrData(str)) {

cli/test/lib/exec/spawn_spec.js

@@ -1,6 +1,5 @@
 require('../../spec_helper')
 
-const _ = require('lodash')
 const cp = require('child_process')
 const os = require('os')
 const tty = require('tty')
@@ -66,72 +65,6 @@ describe('lib/exec/spawn', function () {
     sinon.stub(state, 'getPathToExecutable').withArgs(defaultBinaryDir).returns('/path/to/cypress')
   })
 
-  context('.isGarbageLineWarning', () => {
-    it('returns true', () => {
-      const str = `
-        [46454:0702/140217.292422:ERROR:gles2_cmd_decoder.cc(4439)] [.RenderWorker-0x7f8bc5815a00.GpuRasterization]GL ERROR :GL_INVALID_FRAMEBUFFER_OPERATION : glDrawElements: framebuffer incomplete
-        [46454:0702/140217.292466:ERROR:gles2_cmd_decoder.cc(17788)] [.RenderWorker-0x7f8bc5815a00.GpuRasterization]GL ERROR :GL_INVALID_OPERATION : glCreateAndConsumeTextureCHROMIUM: invalid mailbox name
-        [46454:0702/140217.292526:ERROR:gles2_cmd_decoder.cc(4439)] [.RenderWorker-0x7f8bc5815a00.GpuRasterization]GL ERROR :GL_INVALID_FRAMEBUFFER_OPERATION : glClear: framebuffer incomplete
-        [46454:0702/140217.292555:ERROR:gles2_cmd_decoder.cc(4439)] [.RenderWorker-0x7f8bc5815a00.GpuRasterization]GL ERROR :GL_INVALID_FRAMEBUFFER_OPERATION : glDrawElements: framebuffer incomplete
-        [46454:0702/140217.292584:ERROR:gles2_cmd_decoder.cc(4439)] [.RenderWorker-0x7f8bc5815a00.GpuRasterization]GL ERROR :GL_INVALID_FRAMEBUFFER_OPERATION : glClear: framebuffer incomplete
-        [46454:0702/140217.292612:ERROR:gles2_cmd_decoder.cc(4439)] [.RenderWorker-0x7f8bc5815a00.GpuRasterization]GL ERROR :GL_INVALID_FRAMEBUFFER_OPERATION : glDrawElements: framebuffer incomplete'
-
-        [1957:0406/160550.146820:ERROR:bus.cc(392)] Failed to connect to the bus: Failed to connect to socket /var/run/dbus/system_bus_socket: No such file or directory
-        [1957:0406/160550.147994:ERROR:bus.cc(392)] Failed to connect to the bus: Address does not contain a colon
-
-        [3801:0606/152837.383892:ERROR:cert_verify_proc_builtin.cc(681)] CertVerifyProcBuiltin for www.googletagmanager.com failed:
-        ----- Certificate i=0 (OU=Cypress Proxy Server Certificate,O=Cypress Proxy CA,L=Internet,ST=Internet,C=Internet,CN=www.googletagmanager.com) -----
-        ERROR: No matching issuer found
-
-        Warning: loader_scanned_icd_add: Driver /usr/lib/x86_64-linux-gnu/libvulkan_intel.so supports Vulkan 1.2, but only supports loader interface version 4. Interface version 5 or newer required to support this version of Vulkan (Policy #LDP_DRIVER_7)
-        Warning: loader_scanned_icd_add: Driver /usr/lib/x86_64-linux-gnu/libvulkan_lvp.so supports Vulkan 1.1, but only supports loader interface version 4. Interface version 5 or newer required to support this version of Vulkan (Policy #LDP_DRIVER_7)
-        Warning: loader_scanned_icd_add: Driver /usr/lib/x86_64-linux-gnu/libvulkan_radeon.so supports Vulkan 1.2, but only supports loader interface version 4. Interface version 5 or newer required to support this verison of Vulkan (Policy #LDP_DRIVER_7)
-        Warning: Layer VK_LAYER_MESA_device_select uses API version 1.2 which is older than the application specified API version of 1.3. May cause issues.
-
-        Warning: vkCreateInstance: Found no drivers!
-        Warning: vkCreateInstance failed with VK_ERROR_INCOMPATIBLE_DRIVER
-            at CheckVkSuccessImpl (../../third_party/dawn/src/dawn/native/vulkan/VulkanError.cpp:88)
-            at CreateVkInstance (../../third_party/dawn/src/dawn/native/vulkan/BackendVk.cpp:458)
-            at Initialize (../../third_party/dawn/src/dawn/native/vulkan/BackendVk.cpp:344)
-            at Create (../../third_party/dawn/src/dawn/native/vulkan/BackendVk.cpp:266)
-            at operator() (../../third_party/dawn/src/dawn/native/vulkan/BackendVk.cpp:521)
-
-        [78887:1023/114920.074882:ERROR:debug_utils.cc(14)] Hit debug scenario: 4
-
-        [18489:0822/130231.159571:ERROR:gl_display.cc(497)] EGL Driver message (Error) eglQueryDeviceAttribEXT: Bad attribute.
-
-        [437:1212/125803.148706:ERROR:zygote_host_impl_linux.cc(273)] Failed to adjust OOM score of renderer with pid 610: Permission denied (13)
-      `
-
-      const lines = _
-      .chain(str)
-      .split('\n')
-      .invokeMap('trim')
-      .compact()
-      .value()
-
-      _.each(lines, (line) => {
-        expect(spawn.isGarbageLineWarning(line), `expected line to be garbage: ${line}`).to.be.true
-      })
-    })
-
-    it('returns true for XDG runtime dir warnings', () => {
-      expect(spawn.isGarbageLineWarning('error: XDG_RUNTIME_DIR is invalid or not set')).to.be.true
-    })
-
-    it('returns true for MESA ZINK errors', () => {
-      expect(spawn.isGarbageLineWarning('MESA: error: ZINK: failed to choose pdev')).to.be.true
-    })
-
-    it('returns true for GLX driver errors', () => {
-      expect(spawn.isGarbageLineWarning('glx: failed to create drisw screen')).to.be.true
-    })
-
-    it('returns true for OOM score adjustment warnings', () => {
-      expect(spawn.isGarbageLineWarning('[437:1212/125803.148706:ERROR:zygote_host_impl_linux.cc(273)] Failed to adjust OOM score of renderer with pid 610: Permission denied (13)')).to.be.true
-    })
-  })
-
   context('.start', function () {
     // ️️⚠️ NOTE ⚠️
     // when asserting the calls made to spawn the child Cypress process
@@ -522,55 +455,6 @@ describe('lib/exec/spawn', function () {
       return spawn.start()
     })
 
-    it('does not write to process.stderr when from xlib or libudev', function () {
-      const buf1 = Buffer.from('Xlib: something foo')
-      const buf2 = Buffer.from('libudev something bar')
-      const buf3 = Buffer.from('asdf')
-
-      this.spawnedProcess.stderr.on
-      .withArgs('data')
-      .onFirstCall()
-      .yields(buf1)
-      .onSecondCall()
-      .yields(buf2)
-      .onThirdCall()
-      .yields(buf3)
-
-      this.spawnedProcess.on.withArgs('close').yieldsAsync(0)
-
-      sinon.stub(process.stderr, 'write').withArgs(buf3)
-      os.platform.returns('linux')
-      xvfb.isNeeded.returns(true)
-
-      return spawn.start()
-      .then(() => {
-        expect(process.stderr.write).not.to.be.calledWith(buf1)
-        expect(process.stderr.write).not.to.be.calledWith(buf2)
-      })
-    })
-
-    it('does not write to process.stderr when from high sierra warnings', function () {
-      const buf1 = Buffer.from('2018-05-19 15:30:30.287 Cypress[7850:32145] *** WARNING: Textured Window')
-      const buf2 = Buffer.from('asdf')
-
-      this.spawnedProcess.stderr.on
-      .withArgs('data')
-      .onFirstCall()
-      .yields(buf1)
-      .onSecondCall(buf2)
-      .yields(buf2)
-
-      this.spawnedProcess.on.withArgs('close').yieldsAsync(0)
-
-      sinon.stub(process.stderr, 'write').withArgs(buf2)
-      os.platform.returns('darwin')
-
-      return spawn.start()
-      .then(() => {
-        expect(process.stderr.write).not.to.be.calledWith(buf1)
-      })
-    })
-
     // https://github.com/cypress-io/cypress/issues/1841
     // https://github.com/cypress-io/cypress/issues/5241
     ;['EPIPE', 'ENOTCONN'].forEach((errCode) => {

npm/cypress-schematic/src/builders/cypress/index.ts

@@ -114,6 +114,7 @@ export function startDevServer ({
       // for instance @nguniversal/builders:ssr-dev-server.
       // see https://github.com/nrwl/nx/blob/f930117ed6ab13dccc40725c7e9551be081cc83d/packages/cypress/src/executors/cypress/cypress.impl.ts
       if (builderName !== '@nguniversal/builders:ssr-dev-server') {
+        // eslint-disable-next-line no-console
         console.info(`Passing watch mode to DevServer - watch mode is ${watch}`)
         overrides = {
           watch,

npm/cypress-schematic/src/schematics/utils/index.ts

@@ -69,6 +69,7 @@ function generateCTSpec ({ tree, appPath, component }: { tree: Tree, appPath: st
   const componentFilename = component['name'].split('.')[0]
   const componentName = componentMatch ? componentMatch[0] : componentFilename
 
+  // eslint-disable-next-line no-console
   console.log(`Creating new component spec for: ${componentName}\n`)
 
   return tree.create(`${appPath}/${componentFilename}.component.cy.ts`, ctSpecContent({ componentName, componentFilename }))

packages/data-context/package.json

@@ -21,6 +21,7 @@
     "@babel/parser": "7.28.0",
     "@graphql-tools/batch-execute": "^8.4.6",
     "@graphql-tools/delegate": "8.2.1",
+    "@packages/stderr-filtering": "0.0.0-development",
     "@packages/telemetry": "0.0.0-development",
     "@urql/core": "2.4.4",
     "@urql/exchange-execute": "1.1.0",

packages/data-context/src/DataContext.ts

@@ -38,6 +38,7 @@ import type { IncomingHttpHeaders } from 'http'
 import type { App as ElectronApp } from 'electron'
 import { globalPubSub } from '.'
 import { ProjectLifecycleManager } from './data/ProjectLifecycleManager'
+import { logError } from '@packages/stderr-filtering'
 import type { CypressError } from '@packages/errors'
 import { resetIssuedWarnings } from '@packages/config'
 
@@ -290,9 +291,7 @@ export class DataContext {
   }
 
   logTraceError (e: unknown) {
-    // TODO(tim): handle this consistently
-    // eslint-disable-next-line no-console
-    console.error(e)
+    logError(e)
   }
 
   onError = (cypressError: CypressError, title: string = 'Unexpected Error') => {

packages/data-context/src/actions/ProjectActions.ts

@@ -14,6 +14,7 @@ import { getError } from '@packages/errors'
 import { resetIssuedWarnings } from '@packages/config'
 import type { RunSpecErrorCode } from '@packages/graphql/src/schemaTypes'
 import debugLib from 'debug'
+import { logError } from '@packages/stderr-filtering'
 
 export class RunSpecError extends Error {
   constructor (public code: typeof RunSpecErrorCode[number], msg: string) {
@@ -209,9 +210,7 @@ export class ProjectActions {
         }
       })
     } catch (e) {
-      // TODO(tim): remove / replace with ctx.log.error
-      // eslint-disable-next-line
-      console.error(e)
+      logError(e)
       throw e
     }
   }