diff --git a/lib/leaks.js b/lib/leaks.js
index 2f219501..414c19ab 100755
--- a/lib/leaks.js
+++ b/lib/leaks.js
@@ -121,6 +121,18 @@ exports.detect = function (customGlobals) {
     }
     // $lab:coverage:on$
 
+    // $lab:coverage:off$
+    if (global.TextEncoder) {
+        whitelist.TextEncoder = true;
+    }
+    // $lab:coverage:on$
+
+    // $lab:coverage:off$
+    if (global.TextDecoder) {
+        whitelist.TextDecoder = true;
+    }
+    // $lab:coverage:on$
+
     if (global.DTRACE_HTTP_SERVER_RESPONSE) {
         whitelist.DTRACE_HTTP_SERVER_RESPONSE = true;
         whitelist.DTRACE_HTTP_SERVER_REQUEST = true;