I'm use host to request https://MyHost/ the networkProtocolName return "h3" assumesHTTP3Capable = YES - (void)URLSession:(NSURLSession *)session        task:(NSURLSessionTask *)task didFinishCollectingMetrics:(NSURLSessionTaskMetrics *)metrics AF_API_AVAILABLE(ios(10), macosx(10.12), watchos(3), tvos(10)) { for (NSURLSessionTaskTransactionMetrics * m in metrics.transactionMetrics){              if(m.networkProtocolName.length > 0){         NSLog(@"networkProtocolName %@", m.networkProtocolName);         break;       }     } } but when I use ip replace MyHost to request, and add MyHost to http header @{@"host": "ip"}, the networkProtocolName return "h2" - (void)URLSession:(NSURLSession *)session        task:(NSURLSessionTask *)task didReceiveChallenge:(NSURLAuthenticationChallenge *)challenge  completionHandler:(void (^)(NSURLSessionAuthChallengeDisposition disposition, NSURLCredential *credential))completionHandler {  NSURLSessionAuthChallengeDisposition disposition = NSURLSessionAuthChallengePerformDefaultHandling;     NSURLCredential *credential = nil; //get header host replace ip     NSString *host = [[task.currentRequest allHTTPHeaderFields] objectForKey:@"host"];     if (!host) {       host = task.currentRequest.URL.host;     }     if ([challenge.protectionSpace.authenticationMethod isEqualToString:NSURLAuthenticationMethodServerTrust]) {       if ([weak evaluateServerTrust:challenge.protectionSpace.serverTrust forDomain:host]) {         disposition = NSURLSessionAuthChallengeUseCredential;         credential = [NSURLCredential credentialForTrust:challenge.protectionSpace.serverTrust];       } else {         disposition = NSURLSessionAuthChallengePerformDefaultHandling;       }     } else {       disposition = NSURLSessionAuthChallengePerformDefaultHandling;     }     // 对于其他的 challenges 直接使用默认的验证方案     completionHandler(disposition,credential); } -(BOOL)evaluateServerTrust:(SecTrustRef)serverTrust forDomain:(NSString *)domain {   //创建证书校验策略   NSMutableArray *policies = [NSMutableArray array];   if (domain) {     [policies addObject:(__bridge_transfer id)SecPolicyCreateSSL(true, (__bridge CFStringRef)domain)];   } else {     [policies addObject:(__bridge_transfer id)SecPolicyCreateBasicX509()];   }   //绑定校验策略到服务端的证书上   SecTrustSetPolicies(serverTrust, (__bridge CFArrayRef)policies);   //评估当前 serverTrust 是否可信任，   //官方建议在 result = kSecTrustResultUnspecified 或 kSecTrustResultProceed 的情况下 serverTrust 可以被验证通过，   //https://developer.apple.com/library/ios/technotes/tn2232/_index.html   //关于SecTrustResultType的详细信息请参考SecTrust.h   SecTrustResultType result;   SecTrustEvaluate(serverTrust, &result);   return (result == kSecTrustResultUnspecified || result == kSecTrustResultProceed); } https://ip/ networkProtocolName return "h2" does ip request do not supprt HTTP/3? hope to respone thank you.

Exception Type: EXC_BAD_ACCESS (SIGBUS) Exception Subtype: KERN_PROTECTION_FAILURE at 0x0000001000000008 Exception Codes: 0x0000000000000002, 0x0000001000000008 VM Region Info: 0x1000000008 is in 0x1000000000-0x7000000000; bytes after start: 8 bytes before end: 412316860407 REGION TYPE START - END [ VSIZE] PRT/MAX SHRMOD REGION DETAIL commpage (reserved) fffffc000-1000000000 [ 16K] ---/--- SM=NUL ...(unallocated) ---> GPU Carveout (reserved) 1000000000-7000000000 [384.0G] ---/--- SM=NUL ...(unallocated) UNUSED SPACE AT END Exception Note: EXC_CORPSE_NOTIFY Termination Reason: SIGNAL 10 Bus error: 10 Terminating Process: exc handler [87825] Triggered by Thread: 0 Kernel Triage: VM - Compressor failed a blocking pager_get VM - Compressor failed a blocking pager_get VM - Compressor failed a blocking pager_get VM - Compressor failed a blocking pager_get VM - Compressor failed a blocking pager_get Thread 0 name: Thread 0 Crashed: 0 libobjc.A.dylib 0x00000001983f8cf4 objc_msgSend + 20 (:-1) 1 UIKitCore 0x00000001832d34d4 -[UIInputWindowController updateSupportsDockViewController] + 168 (UIInputWindowController.m:1224) 2 UIKitCore 0x00000001833561fc -[UIInputWindowController _updateContentOverlayInsetsForSelfAndChildren] + 64 (UIInputWindowController.m:1242) crash in random, and have no Valid info. 2022-10-25_10-03-30.8604_-0400-8f6072ef9d771635aaa9900c79aa2406b00a6123.crash

Thread 0 Crashed: 0 libsystem_kernel.dylib 0x00000001df4c6f24 __psynch_cvwait + 8 (:-1) 1 libsystem_pthread.dylib 0x0000000218bec298 _pthread_cond_wait + 1236 (pthread_cond.c:636) 2 JavaScriptCore 0x00000001b2c3cc20 ***::ParkingLot::parkConditionallyImpl(void const*, ***::ScopedLambda<bool ()> const&, ***::ScopedLambda<void ()> const&, ***::TimeWithDynamicClockType const&) + 1844 (ThreadingPOSIX.cpp:622) 3 WebKit 0x00000001b682a220 bool ***::Condition::waitUntilUncheckedWTF::Lock(***::Lock&, ***::TimeWithDynamicClockType const&) + 196 (ParkingLot.h:82) 4 WebKit 0x00000001b69fe8e0 IPC::Connection::waitForMessage(IPC::MessageName, unsigned long long, IPC::Timeout, ***::OptionSetIPC::WaitForOption) + 520 (Condition.h:77) 5 WebKit 0x00000001b6ad0144 WebKit::RemoteLayerTreeDrawingAreaProxy::waitForDidUpdateActivityState(unsigned long long) + 172 (Connection.h:633) 6 WebKit 0x00000001b6c3074c WebKit::WebPageProxy::dispatchActivityStateChange() + 2108 (WebPageProxy.cpp:2379) 2022-10-22_17-57-38.5588_+0800-5e45050864bf1d610e0f1451bbb7e5349c14e03c.crash