diff --git a/index.bs b/index.bs
index bba5a2100..c3af32ad6 100644
--- a/index.bs
+++ b/index.bs
@@ -2412,9 +2412,10 @@ nothrow>ReadableByteStreamControllerRespondInClosedState ( <var>controller</var>
   1. Set _firstDescriptor_.[[buffer]] to ! TransferArrayBuffer(_firstDescriptor_.[[buffer]]).
   1. Assert: _firstDescriptor_.[[bytesFilled]] is *0*.
   1. Let _stream_ be _controller_.[[controlledReadableStream]].
-  1. Repeat the following steps while ! ReadableStreamGetNumReadIntoRequests(_stream_) > *0*,
-    1. Let _pullIntoDescriptor_ be ! ReadableByteStreamControllerShiftPendingPullInto(_controller_).
-    1. Perform ! ReadableByteStreamControllerCommitPullIntoDescriptor(_stream_, _pullIntoDescriptor_).
+  1. If ReadableStreamHasBYOBReader(_stream_) is *true*,
+    1. Repeat the following steps while ! ReadableStreamGetNumReadIntoRequests(_stream_) > *0*,
+      1. Let _pullIntoDescriptor_ be ! ReadableByteStreamControllerShiftPendingPullInto(_controller_).
+      1. Perform ! ReadableByteStreamControllerCommitPullIntoDescriptor(_stream_, _pullIntoDescriptor_).
 </emu-alg>
 
 <h4 id="readable-byte-stream-controller-respond-in-readable-state"
@@ -4476,6 +4477,7 @@ Marcos Caceres,
 Marvin Hagemeister,
 Michael Mior,
 Mihai Potra,
+Romain Bellessort, <!-- rombel on GitHub -->
 Simon Menke,
 Stephen Sugden,
 Tab Atkins,
diff --git a/reference-implementation/lib/readable-stream.js b/reference-implementation/lib/readable-stream.js
index 390b56ff6..c8092dfd6 100644
--- a/reference-implementation/lib/readable-stream.js
+++ b/reference-implementation/lib/readable-stream.js
@@ -1642,11 +1642,11 @@ function ReadableByteStreamControllerRespondInClosedState(controller, firstDescr
   assert(firstDescriptor.bytesFilled === 0, 'bytesFilled must be 0');
 
   const stream = controller._controlledReadableStream;
-
-  while (ReadableStreamGetNumReadIntoRequests(stream) > 0) {
-    const pullIntoDescriptor = ReadableByteStreamControllerShiftPendingPullInto(controller);
-
-    ReadableByteStreamControllerCommitPullIntoDescriptor(stream, pullIntoDescriptor);
+  if (ReadableStreamHasBYOBReader(stream) === true) {
+    while (ReadableStreamGetNumReadIntoRequests(stream) > 0) {
+      const pullIntoDescriptor = ReadableByteStreamControllerShiftPendingPullInto(controller);
+      ReadableByteStreamControllerCommitPullIntoDescriptor(stream, pullIntoDescriptor);
+    }
   }
 }
 
@@ -1717,11 +1717,11 @@ function ReadableByteStreamControllerShouldCallPull(controller) {
     return false;
   }
 
-  if (ReadableStreamHasDefaultReader(stream) && ReadableStreamGetNumReadRequests(stream) > 0) {
+  if (ReadableStreamHasDefaultReader(stream) === true && ReadableStreamGetNumReadRequests(stream) > 0) {
     return true;
   }
 
-  if (ReadableStreamHasBYOBReader(stream) && ReadableStreamGetNumReadIntoRequests(stream) > 0) {
+  if (ReadableStreamHasBYOBReader(stream) === true && ReadableStreamGetNumReadIntoRequests(stream) > 0) {
     return true;
   }
 
diff --git a/reference-implementation/web-platform-tests b/reference-implementation/web-platform-tests
index c5ac311ff..d0c0af83d 160000
--- a/reference-implementation/web-platform-tests
+++ b/reference-implementation/web-platform-tests
@@ -1 +1 @@
-Subproject commit c5ac311ff64f38896279e1c130dce6f6d10b1f51
+Subproject commit d0c0af83d0baf95aed2c97e353a8da881abbbf8d