fix(runtime/http): fix empty blob response (#10689)

1 files changed, 7 insertions, 4 deletions

diff --git a/runtime/js/40_http.js b/runtime/js/40_http.js
index eb4d214ca..d4b658314 100644
--- a/runtime/js/40_http.js
+++ b/runtime/js/40_http.js
@@ -132,10 +132,13 @@
           } else {
             const reader = innerResp.body.stream.getReader();
             const r1 = await reader.read();
-            if (r1.done) throw new TypeError("Unreachable");
-            respBody = r1.value;
-            const r2 = await reader.read();
-            if (!r2.done) throw new TypeError("Unreachable");
+            if (r1.done) {
+              respBody = new Uint8Array(0);
+            } else {
+              respBody = r1.value;
+              const r2 = await reader.read();
+              if (!r2.done) throw new TypeError("Unreachable");
+            }
           }
         } else {
           innerResp.body.streamOrStatic.consumed = true;