Skip the default CancellationToken.

framework/src/Volo.Abp.Http.Client/Volo/Abp/Http/Client/DynamicProxying/DynamicHttpProxyInterceptor.cs

@@ -308,8 +308,17 @@ namespace Volo.Abp.Http.Client.DynamicProxying
 
         protected virtual CancellationToken GetCancellationToken(IAbpMethodInvocation invocation)
         {
-            var cancellationToken = invocation.Arguments.LastOrDefault(x => x is CancellationToken);
-            return (CancellationToken?)cancellationToken ?? CancellationTokenProvider.Token;
+            var cancellationTokenArg = invocation.Arguments.LastOrDefault(x => x is CancellationToken);
+            if (cancellationTokenArg != null)
+            {
+                var cancellationToken = (CancellationToken) cancellationTokenArg;
+                if (cancellationToken != default)
+                {
+                    return cancellationToken;
+                }
+            }
+
+            return CancellationTokenProvider.Token;
         }
     }
 }

framework/test/Volo.Abp.Http.Client.Tests/Volo/Abp/Http/DynamicProxying/IRegularTestController.cs

@@ -38,6 +38,6 @@ namespace Volo.Abp.Http.DynamicProxying
 
         Task<int> DeleteByIdAsync(int id);
 
-        Task AbortRequestAsync(CancellationToken cancellationToken);
+        Task<string> AbortRequestAsync(CancellationToken cancellationToken = default);
     }
 }

framework/test/Volo.Abp.Http.Client.Tests/Volo/Abp/Http/DynamicProxying/RegularTestController.cs

@@ -131,9 +131,10 @@ namespace Volo.Abp.Http.DynamicProxying
 
         [HttpGet]
         [Route("abort-request")]
-        public async Task AbortRequestAsync(CancellationToken cancellationToken)
+        public async Task<string> AbortRequestAsync(CancellationToken cancellationToken = default)
         {
             await Task.Delay(100, cancellationToken);
+            return "AbortRequestAsync";
         }
     }
 

framework/test/Volo.Abp.Http.Client.Tests/Volo/Abp/Http/DynamicProxying/RegularTestControllerClientProxy_Tests.cs

@@ -165,6 +165,9 @@ namespace Volo.Abp.Http.DynamicProxying
             var cts = new CancellationTokenSource();
             cts.CancelAfter(10);
 
+            var result = await _controller.AbortRequestAsync(default);
+            result.ShouldBe("AbortRequestAsync");
+
             var exception = await Assert.ThrowsAsync<HttpRequestException>(async () => await _controller.AbortRequestAsync(cts.Token));
             exception.InnerException.InnerException.Message.ShouldBe("The client aborted the request.");
         }