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UxCZbWShjEsL

V2EX member #293013, joined on 2018-02-21 19:53:42 +08:00
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@nexmoe #6 就主页啊,都没到路径。图传用不来,控制台报错给,贴个 ai 的解析

从你提供的浏览器开发者工具截图来看,主要存在 **两个核心问题**,它们相互关联,导致前端无法成功获取数据:

---

## 问题一:CORS 跨域错误(最关键)

### 错误信息:
> `Access to fetch at 'https://api.opentrends.io/...' from origin 'https://opentrends.io' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.`

### 含义:
你的前端页面运行在 `https://opentrends.io`,但试图请求另一个域名 `https://api.opentrends.io` 的 API 。浏览器出于安全策略(同源策略),默认禁止这种跨域请求,除非服务器明确允许。

而目标服务器 (`api.opentrends.io`) **没有返回必要的 CORS 响应头**(如 `Access-Control-Allow-Origin`),因此浏览器直接拦截了响应,前端代码拿不到数据。
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1 day ago
Replied to a topic by You183 生活 女朋友怀孕了,要还是不要
@follower 好骂
感谢分享,可转债没研究过,正好看看
看着很精美啊,感觉质量挺高的
没有乘客是独享的话,没问题
还有加“我告诉你”的人呢
这不挺好的吗
你们这事不在理
不会,从来没装过
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