【Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' heade】的更多相关文章

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 control check: No 'Access-Control-Allow-Origin' heade 使用Ajax 远程 post 到WebService页面的wsGetStreetData方法.报以…

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

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 is present on the requested resource. 跨域问题,解决办法: 在对应的Controller上加上@CrossOrigin注解,或者在springBoot里面写一个配置类实现全局…

.Net Core 处理跨域问题Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource

网页请求报错: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource. 如图: 跨域问题解决原理 CORS全称Cross-Origin Resource Sharing,中文全称跨域资源共享.它解决跨域问题的原理是通过向http的请求报文和响应报文里面加入相应的标识告诉…

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.我的后台跨域代码只启用了 AllowAnyOrigin() 方法,所以拒绝了options请求. 为什么会产生options请求呢?参考以下文章,原来是添加了header之后产生非简单请求,所以浏览器会先发送一个op…

ajax post 请求报错Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' heade

jquery ajax跨域请求,webapi webconfig配置 前台代码(放了一部分) function CheckIn(roomno) { $.ajax({ url: 'https://www..../RoomAssign', type: 'post', async: false, contentType: 'application/json;charset=utf-8', dataType: 'json', data: JSON.stringify({ AccountId: local…

ajax post上传数据时，前端出现的跨域权限问题：ccess to XMLHttpRequest at ‘’rom origin 'null' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: It does not have HTTP ok st

本人前端使用多个框架时,jq  ajax传参出现如下报错: 最后发现,可能是xhr的相关默认参数被修改了.顾使用jq 传参时,一直报错,jq  ajax额外添加的关键参数: crossDomain: true ajax post传参完整如下: $.ajax({ url: IPName + '/api/index/appointment', type: 'post', dataType: "json", data: { mobile: psi_mobile }, crossDomain:…

Js 跨域CORS报错 Response for preflight has invalid HTTP status code 405

问题 公司项目H5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?sessionId=ee876bfbtest", data:data, befor…

Cross-origin resource sharing JSON with Padding 同源策略 JSONP 为什么form表单提交没有跨域问题，但ajax提交有跨域问题？ XMLHttpRequest and the Fetch API follow the same-origin policy 预检请求（preflight request）

https://zh.wikipedia.org/wiki/跨来源资源共享 跨来源资源共享(CORS)是一份浏览器技术的规范,提供了 Web 服务从不同域传来沙盒脚本的方法,以避开浏览器的同源策略[1],是 JSONP 模式的现代版.与 JSONP 不同,CORS 除了 GET 要求方法以外也支持其他的 HTTP 要求.用 CORS 可以让网页设计师用一般的 XMLHttpRequest,这种方式的错误处理比 JSONP 要来的好.另一方面,JSONP 可以在不支持 CORS 的老旧浏览器上运作…

转 Js 跨域CORS报错 Response for preflight has invalid HTTP status code 405

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…

CORS & OPTIONS & preflight request

CORS & OPTIONS preflight request CORS 原理 CORS跨域的原理实际上是浏览器与服务器通过一些HTTP协议头来做一些约定和限制 OPTIONS 应用场景 https://developer.mozilla.org/en-US/docs/Glossary/Preflight_request preflighted requests & simple requests https://developer.mozilla.org/en-US/docs/Web/…