fix: revert "fix: use stdio for CDP instead of TCP" (#14819)

This reverts commit 148a3e1.

packages/launcher/lib/browsers.ts

@@ -97,7 +97,6 @@ export function launch (
   browser: FoundBrowser,
   url: string,
   args: string[] = [],
-  opts: { pipeStdio?: boolean } = {},
 ) {
   log('launching browser %o', { browser, url })
 
@@ -111,15 +110,7 @@ export function launch (
 
   log('spawning browser with args %o', { args })
 
-  const stdio = ['ignore', 'pipe', 'pipe']
-
-  if (opts.pipeStdio) {
-    // also pipe stdio 3 and 4 for access to debugger protocol
-    stdio.push('pipe', 'pipe')
-  }
-
-  // @ts-ignore
-  const proc = cp.spawn(browser.path, args, { stdio })
+  const proc = cp.spawn(browser.path, args, { stdio: ['ignore', 'pipe', 'pipe'] })
 
   proc.stdout.on('data', (buf) => {
     log('%s stdout: %s', browser.name, String(buf).trim())

packages/server/__snapshots__/5_cdp_spec.ts.js

@@ -1,4 +1,4 @@
-exports['e2e cdp / with TCP transport / handles disconnections as expected'] = `
+exports['e2e cdp / handles disconnections as expected'] = `
 
 ====================================================================================================
 
@@ -59,67 +59,4 @@ Error: connect ECONNREFUSED 127.0.0.1:7777
     ✖  1 of 1 failed (100%)                     XX:XX        -        -        1        -        -  
 
 
-`
-
-exports['e2e cdp / with stdio transport / falls back to connecting via tcp when stdio cannot be connected'] = `
-
-====================================================================================================
-
-  (Run Starting)
-
-  ┌────────────────────────────────────────────────────────────────────────────────────────────────┐
-  │ Cypress:    1.2.3                                                                              │
-  │ Browser:    FooBrowser 88                                                                      │
-  │ Specs:      1 found (spec.ts)                                                                  │
-  │ Searched:   cypress/integration/spec.ts                                                        │
-  └────────────────────────────────────────────────────────────────────────────────────────────────┘
-
-
-────────────────────────────────────────────────────────────────────────────────────────────────────
-                                                                                                    
-  Running:  spec.ts                                                                         (1 of 1)
-Warning: Cypress failed to connect to Chrome via stdio after 1 second. Falling back to TCP...
-Connecting to Chrome via TCP was successful, continuing with tests.
-
-
-  passes
-    ✓ passes
-
-
-  1 passing
-
-
-  (Results)
-
-  ┌────────────────────────────────────────────────────────────────────────────────────────────────┐
-  │ Tests:        1                                                                                │
-  │ Passing:      1                                                                                │
-  │ Failing:      0                                                                                │
-  │ Pending:      0                                                                                │
-  │ Skipped:      0                                                                                │
-  │ Screenshots:  0                                                                                │
-  │ Video:        true                                                                             │
-  │ Duration:     X seconds                                                                        │
-  │ Spec Ran:     spec.ts                                                                          │
-  └────────────────────────────────────────────────────────────────────────────────────────────────┘
-
-
-  (Video)
-
-  -  Started processing:  Compressing to 32 CRF                                                     
-  -  Finished processing: /XXX/XXX/XXX/cypress/videos/spec.ts.mp4                         (X second)
-
-
-====================================================================================================
-
-  (Run Finished)
-
-
-       Spec                                              Tests  Passing  Failing  Pending  Skipped  
-  ┌────────────────────────────────────────────────────────────────────────────────────────────────┐
-  │ ✔  spec.ts                                  XX:XX        1        1        -        -        - │
-  └────────────────────────────────────────────────────────────────────────────────────────────────┘
-    ✔  All specs passed!                        XX:XX        1        1        -        -        -  
-
-
-`
+`

packages/server/lib/browsers/chrome.ts

@@ -15,7 +15,6 @@ import * as CriClient from './cri-client'
 import * as protocol from './protocol'
 import utils from './utils'
 import { Browser } from './types'
-import errors from '../errors'
 
 // TODO: this is defined in `cypress-npm-api` but there is currently no way to get there
 type CypressConfiguration = any
@@ -38,9 +37,6 @@ type ChromePreferences = {
   localState: object
 }
 
-const staticCdpPort = Number(process.env.CYPRESS_REMOTE_DEBUGGING_PORT)
-const stdioTimeoutMs = Number(process.env.CYPRESS_CDP_TARGET_TIMEOUT) || 60000
-
 const pathToExtension = extension.getPathToExtension()
 const pathToTheme = extension.getPathToTheme()
 
@@ -177,7 +173,9 @@ const _writeChromePreferences = (userDir: string, originalPrefs: ChromePreferenc
 }
 
 const getRemoteDebuggingPort = async () => {
-  return staticCdpPort || utils.getPort()
+  const port = Number(process.env.CYPRESS_REMOTE_DEBUGGING_PORT)
+
+  return port || utils.getPort()
 }
 
 /**
@@ -245,47 +243,19 @@ const _disableRestorePagesPrompt = function (userDir) {
   .catch(() => { })
 }
 
-const useStdioCdp = (browser) => {
-  return (
-    // CDP via stdio doesn't seem to work in browsers older than 72
-    // @see https://github.com/cyrus-and/chrome-remote-interface/issues/381#issuecomment-445277683
-    browser.majorVersion >= 72
-    // allow users to force TCP by specifying a port in environment
-    && !staticCdpPort
-  )
-}
-
 // After the browser has been opened, we can connect to
 // its remote interface via a websocket.
-const _connectToChromeRemoteInterface = function (browser, process, port, onError) {
-  const connectTcp = () => {
-    // @ts-ignore
-    la(check.userPort(port), 'expected port number to connect CRI to', port)
-
-    debug('connecting to Chrome remote interface at random port %d', port)
-
-    return protocol.getWsTargetFor(port)
-    .then((wsUrl) => {
-      debug('received wsUrl %s for port %d', wsUrl, port)
-
-      return CriClient.create({ target: wsUrl }, onError)
-    })
-  }
-
-  if (!useStdioCdp(browser)) {
-    return connectTcp()
-  }
-
-  return CriClient.create({ process }, onError)
-  .timeout(stdioTimeoutMs)
-  .catch(Bluebird.TimeoutError, async () => {
-    errors.warning('CDP_STDIO_TIMEOUT', browser.displayName, stdioTimeoutMs)
+const _connectToChromeRemoteInterface = function (port, onError) {
+  // @ts-ignore
+  la(check.userPort(port), 'expected port number to connect CRI to', port)
 
-    const client = await connectTcp()
+  debug('connecting to Chrome remote interface at random port %d', port)
 
-    errors.warning('CDP_FALLBACK_SUCCEEDED', browser.displayName)
+  return protocol.getWsTargetFor(port)
+  .then((wsUrl) => {
+    debug('received wsUrl %s for port %d', wsUrl, port)
 
-    return client
+    return CriClient.create(wsUrl, onError)
   })
 }
 
@@ -465,10 +435,6 @@ export = {
     args.push(`--remote-debugging-port=${port}`)
     args.push('--remote-debugging-address=127.0.0.1')
 
-    if (useStdioCdp(browser)) {
-      args.push('--remote-debugging-pipe')
-    }
-
     return args
   },
 
@@ -524,16 +490,14 @@ export = {
     // first allows us to connect the remote interface,
     // start video recording and then
     // we will load the actual page
-    const launchedBrowser = await utils.launch(browser, 'about:blank', args, {
-      pipeStdio: useStdioCdp(browser),
-    })
+    const launchedBrowser = await utils.launch(browser, 'about:blank', args)
 
     la(launchedBrowser, 'did not get launched browser instance')
 
     // SECOND connect to the Chrome remote interface
     // and when the connection is ready
     // navigate to the actual url
-    const criClient = await this._connectToChromeRemoteInterface(browser, launchedBrowser, port, options.onError)
+    const criClient = await this._connectToChromeRemoteInterface(port, options.onError)
 
     la(criClient, 'expected Chrome remote interface reference', criClient)