调试 Url-Shorten-Worker API报错 from origin 'null' has been blocked by CORS policy: Request header field content-type is not allowed by Access-Control-Allow-Headers in preflight response.

问题 

想调试 Url-Shorten-Worker, 把 index.html 保存在本地电脑上, 调用服务器https://1way.eu.org/的API, 报错

Access to fetch at 'https://1way.eu.org/bodongshouqulveweifengci' from origin 'null' has been blocked by CORS policy: Request header field content-type is not allowed by Access-Control-Allow-Headers in preflight response.

问GPT

答案

在 worker 的 js 中增加如下:

就解决了.

Github: https://github.com/crazypeace/Url-Shorten-Worker