1. 前言

贵金属wap版直播间上线后，偶尔有用户反馈，在进入wap直播间的时候，出现空白页面，但是重新刷新又可以正常显示了。我们曾一度认为是网络请求异常或兼容问题，直到开发PC版直播间，在进行调试中，同样遇到了“白屏”问题，才引起了足够重视，并进行了问题跟踪与分析。现在跟大家分享一下，这种偶然现象出现的原因。

我们的直播间落地页在fa.163.com 系统，而直播间内容，是通过 向直播间系统 qz.fa.163.com 发起Ajax请求获取的。在出现“白屏”的时候，可以通过浏览器的调试窗口，可以看到出现下面的报错

2. 问题分析

从上述错误提示文案中可以看到，问题首先和 跨域 有关。

何为跨域

从字面上理解为“跨域名”，浏览器不能执行其他网站的脚本，然而，跨域不仅仅局限于域名这一项。只要协议、域名、端口有任何一个不同，都被当作是不同的域。 这是由于>同源策略的限制，从一个域上加载的脚本不允许访问另外一个域的文档属性。虽然在浏览器中，

基本 文件 流程 错误 SQL 调试

1. 请求信息 : 2026-02-16 17:51:20 HTTP/1.1 GET : /article/cccocdc.html
2. 运行时间 : 0.0803s ( Load:0.0048s Init:0.0178s Exec:0.0535s Template:0.0041s )
3. 吞吐率 : 12.45req/s
4. 内存开销 : 2,227.22 kb
5. 查询信息 : 12 queries 5 writes
6. 文件加载 : 36
7. 缓存信息 : 0 gets 2 writes
8. 配置加载 : 130
9. 会话信息 : SESSION_ID=cght95upmd8rpdlhpkhhbj8r07

1. /home/wwwroot/jxjierui.cn/index.php ( 1.12 KB )
2. /home/wwwroot/jxjierui.cn/ThinkPHP/ThinkPHP.php ( 4.61 KB )
3. /home/wwwroot/jxjierui.cn/ThinkPHP/Library/Think/Think.class.php ( 12.26 KB )
4. /home/wwwroot/jxjierui.cn/ThinkPHP/Library/Think/Storage.class.php ( 1.37 KB )
5. /home/wwwroot/jxjierui.cn/ThinkPHP/Library/Think/Storage/Driver/File.class.php ( 3.52 KB )
6. /home/wwwroot/jxjierui.cn/ThinkPHP/Mode/common.php ( 2.82 KB )
7. /home/wwwroot/jxjierui.cn/ThinkPHP/Common/functions.php ( 53.56 KB )
8. /home/wwwroot/jxjierui.cn/ThinkPHP/Library/Think/Hook.class.php ( 4.01 KB )
9. /home/wwwroot/jxjierui.cn/ThinkPHP/Library/Think/App.class.php ( 13.49 KB )
10. /home/wwwroot/jxjierui.cn/ThinkPHP/Library/Think/Dispatcher.class.php ( 14.79 KB )
11. /home/wwwroot/jxjierui.cn/ThinkPHP/Library/Think/Route.class.php ( 13.36 KB )
12. /home/wwwroot/jxjierui.cn/ThinkPHP/Library/Think/Controller.class.php ( 11.23 KB )
13. /home/wwwroot/jxjierui.cn/ThinkPHP/Library/Think/View.class.php ( 7.59 KB )
14. /home/wwwroot/jxjierui.cn/ThinkPHP/Library/Behavior/BuildLiteBehavior.class.php ( 3.68 KB )
15. /home/wwwroot/jxjierui.cn/ThinkPHP/Library/Behavior/ParseTemplateBehavior.class.php ( 3.88 KB )
16. /home/wwwroot/jxjierui.cn/ThinkPHP/Library/Behavior/ContentReplaceBehavior.class.php ( 1.91 KB )
17. /home/wwwroot/jxjierui.cn/ThinkPHP/Conf/convention.php ( 11.15 KB )
18. /home/wwwroot/jxjierui.cn/App/Common/Conf/config.php ( 2.12 KB )
19. /home/wwwroot/jxjierui.cn/ThinkPHP/Lang/zh-cn.php ( 2.55 KB )
20. /home/wwwroot/jxjierui.cn/ThinkPHP/Conf/debug.php ( 1.48 KB )
21. /home/wwwroot/jxjierui.cn/App/Home/Conf/config.php ( 0.32 KB )
22. /home/wwwroot/jxjierui.cn/App/Home/Common/function.php ( 3.33 KB )
23. /home/wwwroot/jxjierui.cn/ThinkPHP/Library/Behavior/ReadHtmlCacheBehavior.class.php ( 5.62 KB )
24. /home/wwwroot/jxjierui.cn/App/Home/Controller/ArticleController.class.php ( 6.11 KB )
25. /home/wwwroot/jxjierui.cn/App/Home/Controller/CommController.class.php ( 1.60 KB )
26. /home/wwwroot/jxjierui.cn/ThinkPHP/Library/Think/Model.class.php ( 60.11 KB )
27. /home/wwwroot/jxjierui.cn/ThinkPHP/Library/Think/Db.class.php ( 32.43 KB )
28. /home/wwwroot/jxjierui.cn/ThinkPHP/Library/Think/Db/Driver/Pdo.class.php ( 16.74 KB )
29. /home/wwwroot/jxjierui.cn/ThinkPHP/Library/Think/Cache.class.php ( 3.83 KB )
30. /home/wwwroot/jxjierui.cn/ThinkPHP/Library/Think/Cache/Driver/File.class.php ( 5.87 KB )
31. /home/wwwroot/jxjierui.cn/ThinkPHP/Library/Think/Template.class.php ( 28.16 KB )
32. /home/wwwroot/jxjierui.cn/ThinkPHP/Library/Think/Template/TagLib/Cx.class.php ( 22.40 KB )
33. /home/wwwroot/jxjierui.cn/ThinkPHP/Library/Think/Template/TagLib.class.php ( 9.16 KB )
34. /home/wwwroot/jxjierui.cn/App/Runtime/Cache/Home/7540f392f42b28b481b30614275e4e55.php ( 13.96 KB )
35. /home/wwwroot/jxjierui.cn/ThinkPHP/Library/Behavior/WriteHtmlCacheBehavior.class.php ( 0.97 KB )
36. /home/wwwroot/jxjierui.cn/ThinkPHP/Library/Behavior/ShowPageTraceBehavior.class.php ( 5.24 KB )

1. [ app_init ] --START--
2. Run Behavior\BuildLiteBehavior [ RunTime:0.000005s ]
3. [ app_init ] --END-- [ RunTime:0.000027s ]
4. [ app_begin ] --START--
5. Run Behavior\ReadHtmlCacheBehavior [ RunTime:0.000203s ]
6. [ app_begin ] --END-- [ RunTime:0.000220s ]
7. [ view_parse ] --START--
8. [ template_filter ] --START--
9. Run Behavior\ContentReplaceBehavior [ RunTime:0.000050s ]
10. [ template_filter ] --END-- [ RunTime:0.000068s ]
11. Run Behavior\ParseTemplateBehavior [ RunTime:0.003277s ]
12. [ view_parse ] --END-- [ RunTime:0.003291s ]
13. [ view_filter ] --START--
14. Run Behavior\WriteHtmlCacheBehavior [ RunTime:0.000060s ]
15. [ view_filter ] --END-- [ RunTime:0.000069s ]
16. [ app_end ] --START--

1. 1064:You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ') LIMIT 1' at line 1 [ SQL语句 ] : SELECT `id`,`pid`,`navname` FROM `cx_nav` WHERE ( id= ) LIMIT 1
2. 1064:You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ') LIMIT 1' at line 1 [ SQL语句 ] : SELECT `id`,`navname` FROM `cx_nav` WHERE ( id= ) LIMIT 1
3. 1064:You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ')' at line 1 [ SQL语句 ] : SELECT `id`,`navname` FROM `cx_nav` WHERE ( pid= )
4. [8] Undefined index: pid /home/wwwroot/jxjierui.cn/App/Home/Controller/ArticleController.class.php 第 47 行.
5. [2] file_put_contents(./App/Runtime/Temp/305f398ca4f899ea58a62bbb5c8e8c5f.php): failed to open stream: Permission denied /home/wwwroot/jxjierui.cn/ThinkPHP/Library/Think/Cache/Driver/File.class.php 第 132 行.
6. [8] Undefined index: db_host /home/wwwroot/jxjierui.cn/ThinkPHP/Library/Think/Db.class.php 第 120 行.
7. [8] Undefined index: db_port /home/wwwroot/jxjierui.cn/ThinkPHP/Library/Think/Db.class.php 第 121 行.
8. [8] Undefined index: db_name /home/wwwroot/jxjierui.cn/ThinkPHP/Library/Think/Db.class.php 第 122 行.
9. [2] file_put_contents(./App/Runtime/Temp/ef61111220bdba6d3a6899c6865d6085.php): failed to open stream: Permission denied /home/wwwroot/jxjierui.cn/ThinkPHP/Library/Think/Cache/Driver/File.class.php 第 132 行.

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