test passing on browser

build/test-replacements.js

@@ -109,6 +109,14 @@ module.exports['common.js'] = [
   , deepStrictEqual
   , catchES7
   , catchES7OpenClose
+  , [
+        /require\('module'\)\.builtinModules\.includes\('worker_threads'\)/,
+        'false'
+    ]
+  , [
+        /process.argv.length === 2/,
+        'false'
+    ]
   , [
         /^(  for \(var x in global\) \{|function leakedGlobals\(\) \{)$/m
       ,   '  /*<replacement>*/\n'

test/common/index.js

@@ -96,7 +96,7 @@ var noop = function noop() {};
 var hasCrypto = true;
 
 var isMainThread = function () {
-  if (require('module').builtinModules.includes('worker_threads')) {
+  if (false) {
     return require('worker_threads').isMainThread;
   } // Worker module not enabled → only a single main thread exists.
 
@@ -106,7 +106,7 @@ var isMainThread = function () {
 // `worker_threads`) and child processes.
 
 
-if (process.argv.length === 2 && isMainThread && module.parent && require('cluster').isMaster) {
+if (false && isMainThread && module.parent && require('cluster').isMaster) {
   // The copyright notice is relatively big and the flags could come afterwards.
   var bytesToRead = 1500;
   var buffer = Buffer.allocUnsafe(bytesToRead);