Fix polyfill

Signed-off-by: Sri Krishna Paritala <skrishna@buf.build>
connectrpc · Sep 5, 2024 · 87cf10f · 87cf10f
1 parent adffc7c
commit 87cf10f
Showing 1 changed file with 11 additions and 1 deletion.
diff --git a/packages/connect-web/browserstack/karma-fixup-AbortController.js b/packages/connect-web/browserstack/karma-fixup-AbortController.js
@@ -15,7 +15,17 @@
 // a simplistic polyfill for AbortController and AbortSignal
 
 (function () {
-  if (globalThis.AbortController && globalThis.AbortSignal) {
+  if (!globalThis.AbortController || !globalThis.AbortSignal) {
+    // `throwIfAborted` was added much later.
+    if (!globalThis.AbortSignal.prototype.throwIfAborted) {
+      globalThis.AbortSignal.prototype.throwIfAborted = function () {
+        if (this.aborted) {
+          const err = new Error("operation aborted");
+          err.name = "AbortError";
+          throw err;
+        }
+      };
+    }
     return;
   }