diff --git a/testing/web-platform/tests/streams/readable-byte-streams/general.any.js b/testing/web-platform/tests/streams/readable-byte-streams/general.any.js
index e0ab01f88140..19da47ba3406 100644
--- a/testing/web-platform/tests/streams/readable-byte-streams/general.any.js
+++ b/testing/web-platform/tests/streams/readable-byte-streams/general.any.js
@@ -6451,7 +6451,6 @@ controller
 c
 ;
 }
-async
 pull
 (
 )
@@ -6479,7 +6478,6 @@ byobRequest
 const
 transferredView
 =
-await
 transferArrayBufferView
 (
 controller
@@ -16287,7 +16285,6 @@ pullCalledPromise
 const
 transferredView
 =
-await
 transferArrayBufferView
 (
 controller
@@ -16594,7 +16591,6 @@ pullCalledPromise
 const
 transferredView
 =
-await
 transferArrayBufferView
 (
 controller
diff --git a/testing/web-platform/tests/streams/readable-byte-streams/patched-global.any.js b/testing/web-platform/tests/streams/readable-byte-streams/patched-global.any.js
new file mode 100644
index 000000000000..03d70bb17639
--- /dev/null
+++ b/testing/web-platform/tests/streams/readable-byte-streams/patched-global.any.js
@@ -0,0 +1,374 @@
+'
+use
+strict
+'
+;
+promise_test
+(
+async
+(
+t
+)
+=
+>
+{
+let
+controller
+;
+const
+rs
+=
+new
+ReadableStream
+(
+{
+type
+:
+'
+bytes
+'
+start
+(
+c
+)
+{
+controller
+=
+c
+;
+}
+}
+)
+;
+const
+reader
+=
+rs
+.
+getReader
+(
+{
+mode
+:
+'
+byob
+'
+}
+)
+;
+const
+length
+=
+0x4000
+;
+const
+buffer
+=
+new
+ArrayBuffer
+(
+length
+)
+;
+const
+bigArray
+=
+new
+BigUint64Array
+(
+buffer
+length
+-
+8
+1
+)
+;
+const
+read1
+=
+reader
+.
+read
+(
+new
+Uint8Array
+(
+new
+ArrayBuffer
+(
+0x100
+)
+)
+)
+;
+const
+read2
+=
+reader
+.
+read
+(
+bigArray
+)
+;
+let
+flag
+=
+false
+;
+Object
+.
+defineProperty
+(
+Object
+.
+prototype
+'
+then
+'
+{
+get
+:
+t
+.
+step_func
+(
+(
+)
+=
+>
+{
+if
+(
+!
+flag
+)
+{
+flag
+=
+true
+;
+assert_equals
+(
+controller
+.
+byobRequest
+null
+'
+byobRequest
+should
+be
+null
+after
+filling
+both
+views
+'
+)
+;
+}
+}
+)
+configurable
+:
+true
+}
+)
+;
+t
+.
+add_cleanup
+(
+(
+)
+=
+>
+{
+delete
+Object
+.
+prototype
+.
+then
+;
+}
+)
+;
+controller
+.
+enqueue
+(
+new
+Uint8Array
+(
+0x110
+)
+.
+fill
+(
+0x42
+)
+)
+;
+assert_true
+(
+flag
+'
+patched
+then
+(
+)
+should
+be
+called
+'
+)
+;
+const
+result1
+=
+await
+read1
+;
+assert_false
+(
+result1
+.
+done
+'
+result1
+.
+done
+'
+)
+;
+assert_typed_array_equals
+(
+result1
+.
+value
+new
+Uint8Array
+(
+0x100
+)
+.
+fill
+(
+0x42
+)
+'
+result1
+.
+value
+'
+)
+;
+const
+result2
+=
+await
+read2
+;
+assert_false
+(
+result2
+.
+done
+'
+result2
+.
+done
+'
+)
+;
+assert_equals
+(
+result2
+.
+value
+.
+constructor
+BigUint64Array
+'
+result2
+.
+value
+constructor
+'
+)
+;
+assert_equals
+(
+result2
+.
+value
+.
+byteOffset
+length
+-
+8
+'
+result2
+.
+value
+byteOffset
+'
+)
+;
+assert_equals
+(
+result2
+.
+value
+.
+length
+1
+'
+result2
+.
+value
+length
+'
+)
+;
+assert_array_equals
+(
+[
+.
+.
+.
+result2
+.
+value
+]
+[
+0x42424242_42424242n
+]
+'
+result2
+.
+value
+contents
+'
+)
+;
+}
+'
+Patched
+then
+(
+)
+sees
+byobRequest
+after
+filling
+all
+pending
+pull
+-
+into
+descriptors
+'
+)
+;
diff --git a/testing/web-platform/tests/streams/resources/rs-utils.js b/testing/web-platform/tests/streams/resources/rs-utils.js
index f311ec993c75..96d88d7ee3ef 100644
--- a/testing/web-platform/tests/streams/resources/rs-utils.js
+++ b/testing/web-platform/tests/streams/resources/rs-utils.js
@@ -965,82 +965,19 @@ transferArrayBufferView
 view
 )
 {
-const
-noopByteStream
-=
-new
-ReadableStream
-(
-{
-type
-:
-'
-bytes
-'
-pull
-(
-c
-)
-{
-c
-.
-byobRequest
-.
-respond
+return
+structuredClone
 (
-c
-.
-byobRequest
-.
 view
-.
-byteLength
-)
-;
-c
-.
-close
-(
-)
-;
-}
-}
-)
-;
-const
-reader
-=
-noopByteStream
-.
-getReader
-(
 {
-mode
+transfer
 :
-'
-byob
-'
-}
-)
-;
-return
-reader
-.
-read
-(
+[
 view
-)
-.
-then
-(
-(
-result
-)
-=
->
-result
 .
-value
+buffer
+]
+}
 )
 ;
 }