1. In the Google Chrome browser, after opening Toutiao, the page is completely blank, as shown in Figure 1.
Request URL: https://verify.snssdk.com/reportError
Referrer Policy: no-referrer-when-downgrade
2. Checking the Console shows an error: 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. As shown in Figure 2.
3. After clearing browsing data, including both basic and advanced options, the page is still completely blank, as shown in Figure 3.
4. Opening a new Incognito window, Toutiao loads normally. Checking the Console shows no errors, as shown in Figure 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. @ 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. Comparing the responses for the request to https://verify.snssdk.com/reportError, one has no response and the other has a response. As shown in Figure 5.
{"code":"200","data":null,"msg":""}
6. I noticed that in Incognito mode, new links for downloading the APP and registering a Toutiao account have been added, which I vaguely remember not being there before. Therefore, the reason for the completely blank page this time might be an incompatibility caused by Toutiao upgrading to a new version. As shown in Figure 6.
7. Finally, I uninstalled the Google Chrome browser using the 360 Software Manager, as shown in Figure 7.
8. During uninstallation, I checked the option to also delete my browsing data, as shown in Figure 8.
9. After reinstalling the Google Chrome browser, I opened Toutiao again, and it displayed normally, as shown in Figure 9.
