From 28fadf8c15f1b1e35a18cf31fa51cdbb208e781e Mon Sep 17 00:00:00 2001
From: alschmiedt <aschmiedt@google.com>
Date: Fri, 17 Sep 2021 11:15:20 -0700
Subject: [PATCH] Sets flag to true (#5454)

---
 scripts/gulpfiles/build_tasks.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/gulpfiles/build_tasks.js b/scripts/gulpfiles/build_tasks.js
index 0449e5ae0..42fa62d21 100644
--- a/scripts/gulpfiles/build_tasks.js
+++ b/scripts/gulpfiles/build_tasks.js
@@ -119,7 +119,7 @@ function compile(compilerOptions, opt_verbose, opt_warnings_as_error,
   options.warning_level = opt_verbose ? 'VERBOSE' : 'DEFAULT';
   options.language_in = 'ECMASCRIPT6_STRICT',
   options.language_out = 'ECMASCRIPT5_STRICT';
-  options.rewrite_polyfills = false;
+  options.rewrite_polyfills = true;
   options.hide_warnings_for = 'node_modules';
   if (opt_warnings_as_error || opt_strict_typechecker) {
     options.jscomp_error = JSCOMP_ERROR;