跨域调用web.py的restful接口报：OPTIONS https://... 405 (Method Not Allowed)

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于 2017-11-28 11:43:03 发布 · 5.4k 阅读

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博客内容讲述了在使用web.py开发API时遇到跨域问题，表现为OPTIONS请求返回405状态码及CORS政策限制。通过在服务端增加OPTIONS函数并设置合适的Access-Control-Allow-Origin头域，成功解决了POST请求的跨域调用问题。最终的web.py跨域解决方案代码被提供。

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错误信息如下：

OPTIONS https://ip:1234/... 405 (Method Not Allowed)

XMLHttpRequest cannot load https://IP:1234/.... Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'https://IP:8443' is therefore not allowed access. The response had HTTP status code 405.

跨域原因引起的，个人服务端web.py新增OPTIONS函数

    # 解决跨域访问问题
    def OPTIONS(self):
        web.header('Access-Control-Allow-Origin', '*')
        web.header('Access-Control-Allow-Headers',  'Content-Type, Access-Control-Allow-Origin, Access-Control-Allow-Headers, X-Requested-By, Access-Control-Allow-Methods')
        web.header('Access-Control-Allow-Methods', 'POST, GET, PUT, DELETE')

可以成功调用POST请求，但界面还是会报

has be