> For the complete documentation index, see [llms.txt](https://developers.oxylabs.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://developers.oxylabs.io/products/cn/headless-browser/troubleshooting-guide.md).

# 故障排除指南

如果您遇到意外行为或较低的成功率，请先尝试以下初步步骤。

### **了解我们的 CAPTCHA 解决流程**

通过查看我们的文档，了解我们如何处理 CAPTCHA [处理 CAPTCHA 事件](/products/cn/headless-browser/features/handling-captcha-events.md) 流程。这可以帮助判断 CAPTCHA 挑战是否是问题的来源。 

### **尝试替代浏览器端点**

某些目标网站在特定浏览器引擎下表现更好。如果您使用的是 Chrome 端点，可以考虑切换到 Firefox 端点，反之亦然：\
Chrome 端点： `wss://ubc.oxylabs.io`\
Firefox 端点： `wss://ubs.oxylabs.io`

### **使用国家参数**

在请求中指定国家参数可以显著提高成功率。这可确保您的请求通过来自特定地理位置的 IP 进行路由，过滤掉来自随机或可能不太可靠位置的 IP。

您可以通过在连接 URL 中添加 `?p_cc`  参数，为浏览器会话指定国家。更多信息请参见 [地理位置定向](/products/cn/headless-browser/features/geolocation-targeting.md).

### **使用设备类型参数** 

尝试使用设备参数可能会带来更高的成功率。您可以通过使用 `?p_device` 参数来自定义浏览器模拟不同设备类型的方式。更多信息请参见 [设备类型](https://developers.oxylabs.io/scraping-solutions/unblocking-browser/chrome#device-type) 部分。请注意，目前仅支持 Chrome 版本。

{% hint style="info" %}
如果在尝试这些步骤后问题仍然存在，请联系您的专属客户经理，并提供问题详情以及您已经采取的步骤。
{% endhint %}


---

# Agent Instructions
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## Querying This Documentation
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Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
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