1 files changed, 1 insertions, 9 deletions
diff --git a/cli/rt/11_streams.js b/cli/rt/11_streams.js
index e5a5732e5..7f8af19e2 100644
--- a/cli/rt/11_streams.js
+++ b/cli/rt/11_streams.js
@@ -388,7 +388,7 @@
       let { highWaterMark } = strategy;
       const { type } = underlyingSource;
 
-      if (isUnderlyingByteSource(underlyingSource)) {
+      if (underlyingSource.type == "bytes") {
         if (size !== undefined) {
           throw new RangeError(
             `When underlying source is "bytes", strategy.size must be undefined.`,
@@ -1226,14 +1226,6 @@
     );
   }
 
-  function isUnderlyingByteSource(
-    underlyingSource,
-  ) {
-    const { type } = underlyingSource;
-    const typeString = String(type);
-    return typeString === "bytes";
-  }
-
   function isWritableStream(x) {
     return !(
       typeof x !== "object" ||