在 Google Chrome 浏览器中，今日头条打开后，一片空白的分析解决

1、在 Google Chrome 浏览器中，今日头条打开后，一片空白，如图1

图1

Request URL: https://verify.snssdk.com/reportError
Referrer Policy: no-referrer-when-downgrade

2、查看 Console，报错：Access to XMLHttpRequest at ‘https://verify.snssdk.com/reportError’ from origin ‘https://www.toutiao.com’ has been blocked by CORS policy: Request header field ra-ver is not allowed by Access-Control-Allow-Headers in preflight response.如图2

图2

3、清除浏览数据，包含基本与高级，仍然一片空白，如图3

图3

4、打开新的无痕窗口，今日头条打开后，正常，查看 Console，未报错，如图4

图4

version:0.1.7
pc_text.js:1 version:0.1.7
(index):1 A cookie associated with a cross-site resource at http://i.snssdk.com/ was set without the `SameSite` attribute. A future release of Chrome will only deliver cookies with cross-site requests if they are set with `SameSite=None` and `Secure`. You can review cookies in developer tools under Application>Storage>Cookies and see more details at https://www.chromestatus.com/feature/5088147346030592 and https://www.chromestatus.com/feature/5633521622188032.
vendor.e2caf4792c6de5bf3950.js:112 [tea-sdk][default]已禁止默认上报predefine_pageview事件，需手动上报。
VM15:1 
raven.js:1 [tea-sdk][default]看到本提示，意味着用户信息已完全就绪，上报通道打开。用户标识如下：
raven.js:1 [tea-sdk][default] {
  "user_unique_id": "6799972943449261575",
  "web_id": "6799972943449261575",
  "ssid": "e58f1dbf-0ff2-4702-94b4-6cc59d325369"
}
raven.js:1 [tea-sdk] SDK已经初始化过了！请检查是否多次引入了SDK文件
e.<computed> @ raven.js:1
2p3.pstatp.com/list/240x240/6799949924902619915:1 Failed to load resource: the server responded with a status of 400 (Bad Request)
(index):1 A cookie associated with a cross-site resource at https://xxbg.snssdk.com/ was set without the `SameSite` attribute. A future release of Chrome will only deliver cookies with cross-site requests if they are set with `SameSite=None` and `Secure`. You can review cookies in developer tools under Application>Storage>Cookies and see more details at https://www.chromestatus.com/feature/5088147346030592 and https://www.chromestatus.com/feature/5633521622188032.
p3.pstatp.com/list/240x240/6799949924902619915:1 Failed to load resource: the server responded with a status of 400 (Bad Request)

5、对比请求：https://verify.snssdk.com/reportError 的响应，一为无响应，一为有响应。如图5

图5

{"code":"200","data":null,"msg":""}

6、发现无痕模式下，新增加了下载APP、注册头条号等链接，隐约记得之前是没有的。那么这次打开后一片空白的原因，可能在于今日头条升级了新版本，不兼容导致的。如图6

图6

7、最后在360软件管家中，卸载了 Google Chrome 浏览器，如图7

图7

8、卸载时，勾选同时删除你的浏览数据吗？如图8

图8

9、重新安装 Google Chrome 浏览器，再次打开今日头条，正常，如图9

图9