fix: Blob constructor on various ArrayBuffer views

lib/internal/blob.js

@@ -123,7 +123,7 @@ function getSource(source, endings) {
   // BackingStores are going to be detached and owned by
   // the Blob. We also don't want to have to worry about
   // byte offsets.
-  source = new Uint8Array(source);
+  source = new Uint8Array(source.buffer.slice(0), source.byteOffset);
   return [source.byteLength, source];
 }