1.WebKit
WebKit::WebURLSchemeHandler::stopTask(WebKit::WebPageProxy&, unsigned long long) + 80
2.WebKit WebKit::WebURLSchemeHandler::stopTask(WebKit::WebPageProxy&, unsigned long long) + 80
3.WebKit WebKit::WebURLSchemeHandler::stopAllTasksForPage(WebKit::WebPageProxy&) + 108
4.WebKit WebKit::WebPageProxy::stopAllURLSchemeTasks() + 260
5.WebKit WebKit::WebPageProxy::close() + 1168
6.WebKit -[WKWebView dealloc] + 128
7.XHBUIKit -[XHBWebView dealloc] + 84
8.Foundation _NSKVODeallocate + 184
WKWebView 在dealloc 时崩溃,我该怎么处理。