1 files changed, 9 insertions, 0 deletions
diff --git a/ext/web/lib.rs b/ext/web/lib.rs
index 423e53c51..d14a4a5d5 100644
--- a/ext/web/lib.rs
+++ b/ext/web/lib.rs
@@ -12,6 +12,7 @@ use deno_core::include_js_files;
 use deno_core::op;
 use deno_core::url::Url;
 use deno_core::ByteString;
+use deno_core::CancelHandle;
 use deno_core::Extension;
 use deno_core::OpState;
 use deno_core::Resource;
@@ -107,6 +108,7 @@ pub fn init<P: TimersPermission + 'static>(
       compression::op_compression_finish::decl(),
       op_now::decl::<P>(),
       op_timer_handle::decl(),
+      op_cancel_handle::decl(),
       op_sleep::decl(),
       op_sleep_sync::decl::<P>(),
     ])
@@ -352,6 +354,13 @@ fn op_encoding_encode_into(
   })
 }
 
+/// Creates a [`CancelHandle`] resource that can be used to cancel invocations of certain ops.
+#[op]
+pub fn op_cancel_handle(state: &mut OpState) -> Result<ResourceId, AnyError> {
+  let rid = state.resource_table.add(CancelHandle::new());
+  Ok(rid)
+}
+
 pub fn get_declaration() -> PathBuf {
   PathBuf::from(env!("CARGO_MANIFEST_DIR")).join("lib.deno_web.d.ts")
 }