fix (ai/provider-utils): generalize to Error (DomException not always available) (#2205)

Author: lgrammel

.changeset/mean-owls-exist.md

@@ -0,0 +1,5 @@
+---
+'@ai-sdk/provider-utils': patch
+---
+
+fix (ai/provider-utils): generalize to Error (DomException not always available)

packages/provider-utils/src/is-abort-error.ts

@@ -1,6 +1,6 @@
-export function isAbortError(error: unknown): error is DOMException {
+export function isAbortError(error: unknown): error is Error {
   return (
-    error instanceof DOMException &&
+    error instanceof Error &&
     (error.name === 'AbortError' || error.name === 'TimeoutError')
   );
 }