LibWeb: Add initial support for AbortController and AbortSignal

The DOM specification says that the primary use case for these is to
give Promises abort semantics. It is also a prerequisite for Fetch,
as it is used to make Fetch abortable.
a

1 files changed, 8 insertions, 0 deletions

diff --git a/Userland/Libraries/LibWeb/DOM/AbortController.idl b/Userland/Libraries/LibWeb/DOM/AbortController.idl
new file mode 100644
index 0000000000..4877c9295e
--- /dev/null
+++ b/Userland/Libraries/LibWeb/DOM/AbortController.idl
@@ -0,0 +1,8 @@
+[Exposed=(Window,Worker)]
+interface AbortController {
+    constructor();
+
+    [SameObject] readonly attribute AbortSignal signal;
+
+    undefined abort();
+};