diff --git a/packages/server/lib/plugins/preprocessor.coffee b/packages/server/lib/plugins/preprocessor.coffee
index c36f8e93dedc..3992edfb1939 100644
--- a/packages/server/lib/plugins/preprocessor.coffee
+++ b/packages/server/lib/plugins/preprocessor.coffee
@@ -47,37 +47,26 @@ setDefaultPreprocessor = (config) ->
   debug("set default preprocessor")
 
   browserify = require("@cypress/browserify-preprocessor")
-  # ## Commented out for test. It will be removed in the final version. 
-  # plugins.register("file:preprocessor", browserify({
-  #   browserifyOptions: {
-  #     extensions: ['.ts', '.tsx'],
-  #     plugin: [
-  #       [resolve.sync('tsify', {
-  #         baseDir: __dirname
-  #       }), {
-  #         typescript: resolve.sync('typescript', {
-  #           baseDir: config.projectRoot,
-  #         })
-  #       }]
-  #     ]
-  #   }
-  # }))
+
   options = browserify.defaultOptions;
-  options.browserifyOptions.extensions.push('.ts', '.tsx');
-  babelifyConfig = options.browserifyOptions.transform[1][1];
 
-  resolveTypeScript = ->
-    try 
-      return resolve.sync('@babel/preset-typescript', {
-        baseDir: config.projectRoot
-      })
-    catch 
-      return resolve.sync('@babel/preset-typescript', {
-        baseDir: __dirname
+  resolveTypeScript = () -> 
+    try
+      resolve.sync('typescript', {
+        baseDir: config.projectRoot,
       })
-
-  babelifyConfig.presets.push(resolveTypeScript());
-  babelifyConfig.extensions = ['.js', '.jsx', '.ts', '.tsx'];
+    catch
+      return null
+
+  tsPath = resolveTypeScript()
+
+  if tsPath isnt null 
+    options.browserifyOptions.extensions.push('.ts', '.tsx');
+    options.browserifyOptions.transform.push([
+      path.join(__dirname, './simple_tsify'), {
+        typescript: require(tsPath),
+      },
+    ])
 
   plugins.register("file:preprocessor", browserify(options));
 
diff --git a/packages/server/lib/plugins/simple_tsify.js b/packages/server/lib/plugins/simple_tsify.js
new file mode 100644
index 000000000000..cfca435af373
--- /dev/null
+++ b/packages/server/lib/plugins/simple_tsify.js
@@ -0,0 +1,13 @@
+let through = require('through2')
+
+module.exports = function (b, opts) {
+  return through(function (buf, enc, next) {
+    const ts = opts.typescript
+
+    this.push(ts.transpileModule(buf.toString(), {
+      compilerOptions: {},
+    }).outputText)
+
+    next()
+  })
+}
diff --git a/packages/server/lib/project.js b/packages/server/lib/project.js
index 9e43611f2672..a920fe5ab003 100644
--- a/packages/server/lib/project.js
+++ b/packages/server/lib/project.js
@@ -105,72 +105,22 @@ class Project extends EE {
         return scaffold.plugins(path.dirname(cfg.pluginsFile), cfg)
       }
     }).then((cfg) => {
-      const setupNodePath = path.join(
-        this.projectRoot,
-        cfg.nodeSetupFile
-      )
-
-      return fs.pathExists(setupNodePath)
-      .then((exists) => {
-        // TODO: This part is commented out because packages/server didn't turn on
-        // 'strict' option for TypeScript.
-        // When 'strict' is on, the cypress will fail because of implicit `any`s in
-        // packages/server code, not in users' code.
-        // So, when 'strict' is turned on for packages/server, it should be revisited.
-        // if (exists) {
-        //   debug('custom node setup file exists at %s', setupNodePath)
-
-        //   const setupNode = require(setupNodePath)
-
-        //   setupNode()
-
-        //   return
-        // }
-
-        const resolveProjectTypeScript = () => {
-          try {
-            return resolve.sync('typescript', {
-              basedir: this.projectRoot,
-            })
-          } catch (e) {
-            return undefined
-          }
-        }
-
-        debug('typescript option value: %s', cfg.typescript)
-
-        if (cfg.typescript === 'project') {
-          const tsPath = resolveProjectTypeScript()
-
-          debug('typescript path: %s', tsPath)
-
-          if (tsPath) {
-            tsnode.register({
-              compiler: tsPath,
-              transpileOnly: true,
-            })
-          } else {
-            throw new Error(`The value of 'typescript' option is 'project', but typescript is not set up in the project.`)
-          }
-        } else if (cfg.typescript === 'bundled') {
-          tsnode.register({
-            transpileOnly: true,
-          })
-        } else if (cfg.typescript === 'none') {
-          // Do nothing
-        } else {
-          const tsPath = resolveProjectTypeScript()
+      try {
+        const tsPath = resolve.sync('typescript', {
+          basedir: this.projectRoot,
+        })
 
-          debug('typescript path: %s', tsPath)
+        debug('typescript path: %s', tsPath)
 
-          tsnode.register({
-            compiler: tsPath,
-            transpileOnly: true,
-          })
-        }
+        tsnode.register({
+          compiler: tsPath,
+          transpileOnly: true,
+        })
+      } catch (e) {
+        debug(`typescript doesn't exist. ts-node setup passed.`)
+      }
 
-        return cfg
-      })
+      return cfg
     }).then((cfg) => {
       return this._initPlugins(cfg, options)
       .then((modifiedCfg) => {
diff --git a/packages/server/package.json b/packages/server/package.json
index 1a649dd3fedd..73fc7272fdf3 100644
--- a/packages/server/package.json
+++ b/packages/server/package.json
@@ -123,11 +123,10 @@
     "strip-ansi": "3.0.1",
     "syntax-error": "1.4.0",
     "term-size": "2.1.0",
+    "through2": "^2.0.0",
     "tough-cookie": "3.0.1",
     "trash": "5.2.0",
     "ts-node": "8.5.4",
-    "tsify": "4.0.1",
-    "typescript": "3.7.2",
     "underscore": "1.9.1",
     "underscore.string": "3.3.5",
     "url-parse": "1.4.7",