cors

cors 后端解决跨域问题

删除回忆录丶 提交于 2020-01-11 09:55:21
vue本地调用本地后台接口包跨域问题: Access to XMLHttpRequest at 'http://localhost:8001/users' from origin 'http://localhost:8080' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource. cors 跨域资源共享, 在不同服务器、端口之间进行资源访问时,会报该错误。上面的例子就是 8001端口调永8080端口的接口报错。 解决: 方法1、@ CrossOrigin 在需要解决的controller方法前使用该注解 @ApiOperation(value = "用户登录") @ApiResponses( {@ApiResponse(code=200,message="成功",response = DynamicResponse.class)} ) @PostMapping @CrossOrigin @ResponseBody public DynamicResponse<User> login (@RequestBody LoginRequest loginRequest){ // ... } 方法2、配置过滤器

Angular 2 doesn't save my Authentication Cookie with CORS

*爱你&永不变心* 提交于 2020-01-11 06:41:09
问题 I have an angular 2 app which should authenticate to a Node Express backend where it sends an login request to the backend and receives a cookie. It should send this cookie with every consecutive request (which it does not). I have in my angular app: class LoginService private requestOptions = new RequestOptions({headers: this.headers, withCredentials: true});` login(username: string, password: string): Promise<boolean> { return this.http.post(this.myUrl + "login", JSON.stringify({username

jQuery, CORS, JSON (without padding) and authentication issues

北战南征 提交于 2020-01-11 05:42:11
问题 I have two domains. I'm trying to access a JSON object from one domain through a page on another. I've read everything I could find regarding this issue, and still can't figure this out. The domain serving the JSON has the following settings: Header set Access-Control-Allow-Origin "*" Header set Access-Control-Allow-Methods "GET, OPTIONS" Header set Access-Control-Allow-Headers "origin, authorization, accept" From my other domain, I'm calling the following: $.ajax({ type:'get', beforeSend:

Avoiding preflight OPTIONS requests with CORS

无人久伴 提交于 2020-01-10 17:31:29
问题 I am building an Angular app that interacts with an API built with ASP.NET Web API 2. I am using Basic Authentication by sending an Authorization header with each request that requires authentication: Angular snippet: $http.defaults.headers.common['Authorization'] = authHeader; Request: Accept:application/json, text/javascript Accept-Encoding:gzip, deflate, sdch Accept-Language:en-US,en;q=0.8 Access-Control-Max-Age:1728000 Authorization:Basic [base64 encoded credential couplet here]

Avoiding preflight OPTIONS requests with CORS

纵然是瞬间 提交于 2020-01-10 17:31:10
问题 I am building an Angular app that interacts with an API built with ASP.NET Web API 2. I am using Basic Authentication by sending an Authorization header with each request that requires authentication: Angular snippet: $http.defaults.headers.common['Authorization'] = authHeader; Request: Accept:application/json, text/javascript Accept-Encoding:gzip, deflate, sdch Accept-Language:en-US,en;q=0.8 Access-Control-Max-Age:1728000 Authorization:Basic [base64 encoded credential couplet here]

彻底掌握CORS跨源资源共享

陌路散爱 提交于 2020-01-10 11:22:53
本文来自于公众号链接: 彻底掌握CORS跨源资源共享 ) 本文接上篇公众号文章: 彻底理解浏览器同源策略SOP 一.概述 在云时代,各种SAAS应用层出不穷,各种互联网API接口越来越丰富,H5技术在微信小程序、支付宝小程序、Hybird中大行其道,所有的这些都离不开跨源访问。 CORS即跨源资源共享(Cross-Origin Resource Sharing),是由W3C组织维护的处于稳定状态的浏览器跨源访问规范,被现代主流版本浏览器充分支持。在普通的web应用跨源访问server的场景下,CORS是最优的跨源访问方案。对比其他的方案,如iframe标签嵌套方案不够安全,JSONP方案功也只支持GET方法,CORS的安全性高且功能完善。 什么是跨源访问 现代浏览器都支持同源策略SOP。假如有网站: A:http://www.exampleA.com B:http://www.exampleB.com A的web页调用B的资源,此时因为A和B的源不同,就发生了跨源访问。根据SOP规范,在默认情况下A的web页是无法访问到B的资源的。CORS在尽量保证安全的前提下,放宽了SOP限制,使得浏览器可以跨源访问服务器资源。 关于SOP细则,请参考上篇公众号文章 : 彻底理解浏览器同源策略SOP 插图:corsflow 除了最常用的XMLHttpRequest(AJAX

how to allow ACCESS-CONTROL-ALLOW-ORIGIN aka cross-domain on wampserver

江枫思渺然 提交于 2020-01-10 08:24:18
问题 XMLHttpRequest cannot load https://webservice.com?param=hahah. Origin http://{domain} is not allowed by Access-Control-Allow-Origin. I get this when I try to make a webservice call through wampserver, how could I enable this on wampserver? or how may i just jsonP to obtain xml data without javascript throwing an error. 回答1: You have to enable the headers module first, like so : click on the wamp icon in your systray go to Apache > Apache modules check the option 'headers_module' And then

How to avoid CORS errors (“Failed to fetch” or “Server not found or an error occurred”) when making requests from Swagger Editor?

放肆的年华 提交于 2020-01-10 05:29:09
问题 I have the following OpenAPI definition: swagger: "2.0" info: version: 1.0.0 title: Simple API description: A simple API to learn how to write OpenAPI Specification schemes: - https host: now.httpbin.org paths: /: get: summary: Get date in rfc2822 format responses: 200: schema: type: object items: properties: now: type: object rfc2822: type: string I would like to retrieve rfc2822 from the response: {"now": {"epoch": 1531932335.0632613, "slang_date": "today", "slang_time": "now", "iso8601":

How is it possible to enable CORS from server-side?

对着背影说爱祢 提交于 2020-01-10 05:27:26
问题 From my little experience in web API, same origin policy is a policy of browsers i.e, browser doesn't allow to make requests to other hosts rather than the origin. I wonder how it is possible to enable CORS from server side(talking about ASP.net Web API)? This is how i enable CORS in webAPI namespace WebService.Controllers { [EnableCors(origins: "*", headers: "*", methods: "*")] public class TestController : ApiController { // Controller methods ... } } If CORS is a browser thing, isn't it

Why does jQuery throw an error when I request external resources using an Appcache Manifest?

混江龙づ霸主 提交于 2020-01-10 05:27:05
问题 I have an application that uses a .appcache manifest. Everything works as expected, resources get cached: CACHE MANIFEST CACHE: css/images/ajax-loader.gif [...] NETWORK: http://docs.google.com/* SETTINGS: prefer-online Now, when I request a CSV resource from http://docs.google.com like so: $.get(url, function (data) { // do something with the data }).fail(function () { alert("There was an error in loading current data from the server."); }); the request fails even if I'm acutally online (on