【文章推荐】Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://localhost:8000' is therefore not allowed a

原文：Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://localhost:8000' is therefore not allowed a

，，webservice服务中，webConfig中添加以上配置，缺一不可 ...

2018-08-02 15:20 0 5790 推荐指数：

has been blocked by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present

前端显示: has been blocked by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header ...

跨域请求错误： Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource

今天在学习Angular 的HttpInterceptor 拦截器时，发现添加了新的headers键值之后总是报跨域错误。后台使用的是asp.net core。检查发现，在添加了新的header之后，每次请求之前都会先发送一个options请求，这个请求被后台拒绝了，所以导致报错。我的后台 ...

has been blocked by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present

出现这个，就是跨域问题了，我是在vue用axios直接发送请求向java后台的过程中出现的至于什么是跨域问题？主要是有浏览器的同源策略导致的，目的就是为了保护网站使用者，若没有同源策略，那么在 ...

接口在dev环境报跨域问题(has been blocked by CORS policy:Response to preflight request doesn't pass access control check:No 'Access-Control-Allow-Origin' header

前端报错：跨域问题，解决办法：（主要是后端解决）在对应的接口处，设置允许跨域即可参考链接：https://www.cnblogs.com/Cou ...

Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' heade

XMLHttpRequest cannot load http://10.164.153.37:8050/WebService/WebService.asmx/wsGetStreetData. Response to preflight request doesn't pass access ...

No 'Access-Control-Allow-Origin' header is present on the requested resource.

...

No 'Access-Control-Allow-Origin' header is present on the requested resource.

今天做一个AJAX案例时，浏览器监控到如下错误： XMLHttpRequest cannot load http://54.169.69.60:8081/process_message. No 'Access-Control-Allow-Origin' header is present ...

nginx 实现 ajax 跨域请求Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin

AJAX从一个域请求另一个域会有跨域的问题。那么如何在nginx上实现ajax跨域请求呢？要在nginx上启用跨域请求，需要添加add_header Access-Control*指令。如下所示：　　　　　　add_header ...

原文：Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://localhost:8000' is therefore not allowed a

相关推荐

相关标签