perf(ext/fetch): use content-length in InnerBody.consume (#15925)

This fast path prevents repeated allocations when receiving a fetch body with a known size.

Co-authored-by: Luca Casonato <hello@lcas.dev>

1 files changed, 1 insertions, 0 deletions

diff --git a/ext/fetch/26_fetch.js b/ext/fetch/26_fetch.js
index c980bc9b8..13c34f534 100644
--- a/ext/fetch/26_fetch.js
+++ b/ext/fetch/26_fetch.js
@@ -335,6 +335,7 @@
       } else {
         response.body = new InnerBody(
           createResponseBodyStream(resp.responseRid, terminator),
+          resp.contentLength,
         );
       }
     }