diff --git a/testing/web-platform/tests/fetch/api/cors/resources/not-cors-safelisted.json b/testing/web-platform/tests/fetch/api/cors/resources/not-cors-safelisted.json
index 284e8ca4a4a59..ef975e8cb7a81 100644
--- a/testing/web-platform/tests/fetch/api/cors/resources/not-cors-safelisted.json
+++ b/testing/web-platform/tests/fetch/api/cors/resources/not-cors-safelisted.json
@@ -38,6 +38,14 @@ language
 ]
 [
 "
+authorization
+"
+"
+basics
+"
+]
+[
+"
 content
 -
 language
@@ -86,6 +94,16 @@ long
 ]
 [
 "
+range
+"
+"
+bytes
+0
+-
+"
+]
+[
+"
 test
 "
 "
diff --git a/testing/web-platform/tests/fetch/api/credentials/authentication-basic.any.js b/testing/web-platform/tests/fetch/api/credentials/authentication-basic.any.js
index 50c4b9ed8460a..829e4e5f039ff 100644
--- a/testing/web-platform/tests/fetch/api/credentials/authentication-basic.any.js
+++ b/testing/web-platform/tests/fetch/api/credentials/authentication-basic.any.js
@@ -6,20 +6,6 @@ global
 =
 window
 worker
-/
-/
-META
-:
-script
-=
-.
-.
-/
-resources
-/
-utils
-.
-js
 function
 basicAuth
 (
@@ -80,9 +66,12 @@ headers
 return
 fetch
 (
-RESOURCES_DIR
-+
 "
+.
+.
+/
+resources
+/
 authentication
 .
 py
@@ -218,3 +207,28 @@ omit
 200
 )
 ;
+basicAuth
+(
+"
+User
+-
+added
+bogus
+Authorization
+header
+with
+omit
+mode
+"
+"
+notuser
+"
+"
+notpassword
+"
+"
+omit
+"
+401
+)
+;
diff --git a/testing/web-platform/tests/fetch/api/resources/utils.js b/testing/web-platform/tests/fetch/api/resources/utils.js
index bca54654b15cf..96cbbd21bc6cc 100644
--- a/testing/web-platform/tests/fetch/api/resources/utils.js
+++ b/testing/web-platform/tests/fetch/api/resources/utils.js
@@ -1,9 +1,4 @@
 var
-inWorker
-=
-false
-;
-var
 RESOURCES_DIR
 =
 "
@@ -14,28 +9,6 @@ resources
 /
 "
 ;
-try
-{
-inWorker
-=
-!
-(
-self
-instanceof
-Window
-)
-;
-}
-catch
-(
-e
-)
-{
-inWorker
-=
-true
-;
-}
 function
 dirname
 (