fix: added check for cancel tokens (#99)

src/index.ts

@@ -125,6 +125,10 @@ function normalizeArray<T>(obj?: T[]): T[] | undefined {
 }
 
 function onError(err: AxiosError) {
+  if (axios.isCancel(err)) {
+    return Promise.reject(err);
+  }
+
   const config = getConfig(err) || {};
   config.currentRetryAttempt = config.currentRetryAttempt || 0;
   config.retry =

test/index.ts

@@ -298,4 +298,35 @@ describe('retry-axios', () => {
     assert.strictEqual(res2.data, 'toast');
     scopes.forEach(s => s.done());
   });
+
+  it('should ignore requests that have been canceled', async () => {
+    const scopes = [
+      nock(url)
+        .get('/')
+        .times(2)
+        .delay(5)
+        .reply(500),
+      nock(url)
+        .get('/')
+        .reply(200, 'toast'),
+    ];
+    interceptorId = rax.attach();
+    try {
+      const src = axios.CancelToken.source();
+      const cfg: rax.RaxConfig = {
+        url,
+        raxConfig: { retry: 2 },
+        cancelToken: src.token,
+      };
+      const req = axios(cfg);
+      setTimeout(() => {
+        src.cancel();
+      }, 10);
+      const res = await req;
+      throw new Error('The canceled request completed.');
+    } catch (err) {
+      assert.strictEqual(axios.isCancel(err), true);
+    }
+    assert.strictEqual(scopes[1].isDone(), false);
+  });
 });