转自:http://www.cnblogs.com/SilenceTom/p/6697484.html 调用接口遇到Response for preflight has invalid HTTP status code 405这样的错误,是使用PUT方式提交请求接口.Content-Type设置为application/json,JS代码如下: $.ajax({ type: "PUT", url: "http://172.16.200.84:8977/Messages?ses…
在做项目时,用到axios,数据用post提交时,老是报错,错误提示为: Access to XMLHttpRequest at 'http://127.0.0.1:3000/api/add' from origin 'http://localhost:8080' has been blocked by CORS policy: Request header field content-type is not allowed by Access-Control-Allow-Headers in…
在用python的bottle框架开发时,前端使用ajax跨域访问时,js代码老是进入不了success,而是进入了error,而返回的状态却是200.url直接在浏览器访问也是正常的,浏览器按F12后会发现下面这个错误提示 XMLHttpRequest cannot load http://192.168.0.118:8081/get_mobile_number/?id=1. No 'Access-Control-Allow-Origin' header is present on the r…