碰到以上情况有两种可能，一种是https和http传输协议的问题，还有一个就是应用跳转的问题，友盟的官方文档上写的很清楚，我就直接复制过来了。
1. HTTP传输安全
以iOS9 SDK编译的工程会默认以SSL安全协议进行网络传输，即HTTPS，如果依然使用HTTP协议请求网络会报系统异常并中断请求。目前可用如下两种方式保持用HTTP进行网络连接：
A、在info.plist中加入安全域名白名单(右键info.plist用source code打开)
NSAppTransportSecurity NSExceptionDomains log.umsns.com NSIncludesSubdomains <true/>NSTemporaryExceptionAllowsInsecureHTTPLoads <true/>NSTemporaryExceptionMinimumTLSVersion <string>TLSv1.1string>sns.whalecloud.com NSIncludesSubdomains <true/>NSTemporaryExceptionAllowsInsecureHTTPLoads <true/>NSTemporaryExceptionMinimumTLSVersion <string>TLSv1.1string>sina.cn NSIncludesSubdomains <true/>NSThirdPartyExceptionRequiresForwardSecrecy <false/>weibo.cn NSIncludesSubdomains <true/>NSThirdPartyExceptionRequiresForwardSecrecy <false/>weibo.com NSIncludesSubdomains <true/>NSThirdPartyExceptionAllowsInsecureHTTPLoads <true/>NSThirdPartyExceptionRequiresForwardSecrecy <false/>sinaimg.cn NSIncludesSubdomains <true/>NSThirdPartyExceptionAllowsInsecureHTTPLoads <true/>NSThirdPartyExceptionRequiresForwardSecrecy <false/>sinajs.cn NSIncludesSubdomains <true/>NSThirdPartyExceptionAllowsInsecureHTTPLoads <true/>NSThirdPartyExceptionRequiresForwardSecrecy <false/>sina.com.cn NSIncludesSubdomains <true/>NSThirdPartyExceptionAllowsInsecureHTTPLoads <true/>NSThirdPartyExceptionRequiresForwardSecrecy <false/>qq.com NSIncludesSubdomains <true/>NSThirdPartyExceptionAllowsInsecureHTTPLoads <true/>NSThirdPartyExceptionRequiresForwardSecrecy <false/>renren.com NSIncludesSubdomains <true/>NSThirdPartyExceptionAllowsInsecureHTTPLoads <true/>NSThirdPartyExceptionRequiresForwardSecrecy <false/>facebook.com NSIncludesSubdomains <true/>NSExceptionRequiresForwardSecrecy <false/>fbcdn.net NSIncludesSubdomains <true/>NSExceptionRequiresForwardSecrecy <false/>akamaihd.net NSIncludesSubdomains <true/>NSExceptionRequiresForwardSecrecy <false/>twitter.com NSIncludesSubdomains <true/>NSExceptionRequiresForwardSecrecy <false/>
注：以上部分平台官方未给出相应白名单，由技术人员测试各个平台所收集而来，如果有所遗漏，请自行加入并向客服说明，我们会进一步补充名单。
B、在info.plist的NSAppTransportSecurity下新增NSAllowsArbitraryLoads并设置为YES，指定所有HTTP连接都可正常请求
NSAppTransportSecurity NSAllowsArbitraryLoads <true/>
2. 应用跳转（SSO等）
如果你的应用使用了如SSO授权登录或跳转分享功能，在iOS9下就需要增加一个可跳转的白名单，指定对应跳转App的URL Scheme，否则将在第三方平台判断是否跳转时用到的canOpenURL时返回NO，进而只进行webview授权或授权/分享失败。
同样在info.plist增加：
LSApplicationQueriesSchemes <string>wechatstring> <string>weixinstring> <string>sinaweibohdstring> <string>sinaweibostring> <string>sinaweibossostring> <string>weibosdkstring> <string>weibosdk2.5string> <string>mqqapistring> <string>mqqstring> <string>mqqOpensdkSSoLoginstring> <string>mqqconnectstring> <string>mqqopensdkdatalinestring> <string>mqqopensdkgrouptribesharestring> <string>mqqopensdkfriendstring> <string>mqqopensdkapistring> <string>mqqopensdkapiV2string> <string>mqqopensdkapiV3string> <string>mqzoneopensdkstring> <string>wtloginmqqstring> <string>wtloginmqq2string> <string>mqqwpastring> <string>mqzonestring> <string>mqzonev2string> <string>mqzonesharestring> <string>wtloginqzonestring> <string>mqzonewxstring> <string>mqzoneopensdkapiV2string> <string>mqzoneopensdkapi19string> <string>mqzoneopensdkapistring> <string>mqqbrowserstring> <string>mttbrowserstring> <string>alipaystring> <string>alipaysharestring> <string>renreniosstring> <string>renrenapistring> <string>renrenstring> <string>renreniphonestring> <string>laiwangssostring> <string>yixinstring> <string>yixinopenapistring> <string>instagramstring> <string>whatsappstring> <string>linestring> <string>fbapistring> <string>fb-messenger-apistring> <string>fbauth2string> <string>fbshareextensionstring>
3. 应用瘦身（App Thining）
iOS9 SDK新增了对App瘦身的功能，详情见App Thining。目前各个第三方平台正在进行App thining的支持，所以为了正常使用第三方SDK及分享SDK，需要在Build Setting中将Enable bitcode关闭,或设置编译标识ENABLE_BITCODE=NO。
注：bitcode仅在Xcode7以上显示并默认开启。