feat(fetch): implement abort (#10863)

This commit introduces fetch aborting via an AbortSignal.

1 files changed, 18 insertions, 1 deletions

diff --git a/extensions/fetch/22_body.js b/extensions/fetch/22_body.js
index f0c7ac8bd..dcf1128a7 100644
--- a/extensions/fetch/22_body.js
+++ b/extensions/fetch/22_body.js
@@ -20,7 +20,8 @@
   const { parseFormData, formDataFromEntries, encodeFormData } =
     globalThis.__bootstrap.formData;
   const mimesniff = globalThis.__bootstrap.mimesniff;
-  const { isReadableStreamDisturbed } = globalThis.__bootstrap.streams;
+  const { isReadableStreamDisturbed, errorReadableStream } =
+    globalThis.__bootstrap.streams;
 
   class InnerBody {
     /** @type {ReadableStream<Uint8Array> | { body: Uint8Array, consumed: boolean }} */
@@ -106,6 +107,22 @@
       }
     }
 
+    cancel(error) {
+      if (this.streamOrStatic instanceof ReadableStream) {
+        this.streamOrStatic.cancel(error);
+      } else {
+        this.streamOrStatic.consumed = true;
+      }
+    }
+
+    error(error) {
+      if (this.streamOrStatic instanceof ReadableStream) {
+        errorReadableStream(this.streamOrStatic, error);
+      } else {
+        this.streamOrStatic.consumed = true;
+      }
+    }
+
     /**
      * @returns {InnerBody}
      */