Our iOS application contains WKWebView.
Recently crashes occured in iOS 12, we found this type of crash is unrelated to device type and network type.
Here is the crash report.
Thread 11 Crashed:
0 WebKit WebKit::WebProcessProxy::~WebProcessProxy() + 784
1 WebKit WebKit::WebProcessProxy::~WebProcessProxy() + 780
2 WebKit WebKit::WebProcessProxy::~WebProcessProxy() + 12
3 WebKit WebKit::WebPageProxy::~WebPageProxy() + 1692
4 WebKit -[WKObject dealloc] + 36
5 WebKit API::FrameInfo::~FrameInfo() + 48
6 WebKit -[WKFrameInfo dealloc] + 36
7 WebKit API::NavigationAction::~NavigationAction() + 188
8 WebKit -[WKNavigationAction dealloc] + 36
9 WebKit ***::BlockPtr<void (WKNavigationActionPolicy)> ***::BlockPtr<void (WKNavigationActionPolicy)>::fromCallable<WebKit::NavigationState::NavigationClient::decidePolicyForNavigationAction(WebKit::WebPageProxy&, ***::Ref<API::NavigationAction, ***::DumbPtrTraits<API::NavigationAction> >&&, ***::Ref<WebKit::WebFramePolicyListenerProxy, ***::DumbPtrTraits<WebKit::WebFramePolicyListenerProxy> >&&, API::Object*)::$_2>(WebKit::NavigationState::NavigationClient::decidePolicyForNavigationAction(WebKit::WebPageProxy&, ***::Ref<API::NavigationAction, ***::DumbPtrTraits<API::NavigationAction> >&&, ***::Ref<WebKit::WebFramePolicyListenerProxy, ***::DumbPtrTraits<WebKit::WebFramePolicyListenerProxy> >&&, API::Object*)::$_2)::'lambda'(void const*)::__invoke(void const*) + 88
10 libsystem_blocks.dylib _Block_release + 152
11 libsystem_blocks.dylib _Block_release + 152
12 libsystem_blocks.dylib _Block_release + 152
13 libdispatch.dylib _dispatch_client_callout + 16
14 libdispatch.dylib _dispatch_queue_override_invoke + 680
15 libdispatch.dylib _dispatch_root_queue_drain + 376
16 libdispatch.dylib _dispatch_worker_thread2 + 128
17 libsystem_pthread.dylib _pthread_wqthread + 472