适配iOS13之AFNetworking + UIWebView

去掉这个分类即可

pod 'AFNetworking', '~> 3.0', :subspecs => ['Reachability', 'Serialization', 'Security', 'NSURLSession']

//#import <AFNetworking/AFNetworking.h>

改为

#import <AFNetworking/AFNetworking-umbrella.h>

来源：https://github.com/AFNetworking/AFNetworking/issues/4428