Guard against no support for AbortController

Signed-off-by: Evan Owen <[email protected]>
drcallaway · Jan 13, 2023 · af9970f · af9970f
1 parent 73b9d71
commit af9970f
Showing 1 changed file with 5 additions and 3 deletions.
diff --git a/src/timeoutLink.ts b/src/timeoutLink.ts
@@ -96,9 +96,11 @@ export default class TimeoutLink extends ApolloLink {
       };
 
       // cancel timeout if aborted from somewhere else
-      controller.signal.addEventListener("abort", () => {
-        cancelTimeout();
-      });
+      if (controller) {
+        controller.signal.addEventListener("abort", () => {
+          cancelTimeout();
+        });
+      }
 
       let ctxRef = operation.getContext().timeoutRef;
       if (ctxRef) {