我无法使cors使用角 core 2.1,但出现此错误:
I am unable to make cors work angular core 2.1 I get this error:
在' https://dev...SaveAPP '来自来源' https:/ / page 已被CORS政策阻止:对飞行前请求的响应未通过访问控制检查:飞行前请求不允许重定向。
Access to XMLHttpRequest at 'dev...SaveAPP' from origin 'page' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: Redirect is not allowed for a preflight request.
这是我的startup.cs
this is my startup.cs
public void ConfigureServices(IServiceCollection services) { services.AddCors(options => { options.AddPolicy("AllowAll", builder => builder.WithOrigins("localhost:4200", "e.corpintra", "specit-dtna-dev.e.corpintra", "specit-dtna.e.corpintra", "specit-dtna-test.e.corpintra") .AllowAnyMethod() .WithExposedHeaders("content-disposition") .AllowAnyHeader() .AllowCredentials() .SetPreflightMaxAge(TimeSpan.FromSeconds(3600))); }); services.Configure<MvcOptions>(options => { options.Filters.Add(new CorsAuthorizationFilterFactory("AllowAll")); }); services.AddMvc().AddJsonOptions(options => options.SerializerSettings.ContractResolver = new DefaultContractResolver()); services.AddAuthentication(IISDefaults.AuthenticationScheme); } public void Configure(IApplicationBuilder app, IHostingEnvironment env) { if (env.IsDevelopment()) { app.UseDeveloperExceptionPage(); } if (env.IsProduction() || env.IsStaging()) { app.UseExceptionHandler("/Error"); } // app.UseCorsMiddleware(); app.UseCors("AllowAll"); // app.UseCors(builder => // builder.WithOrigins("localhost:4200", "localhost:5000") //.AllowAnyOrigin() //.AllowAnyHeader() //.AllowAnyMethod()); app.UseMvc(); }来自角度我正在使用拦截器
from angular I am using an interceptor
intercept(request: HttpRequest<any>, next: HttpHandler): Observable<HttpEvent<any>> { request = request.clone({ withCredentials: true }); return next.handle(request); }我的api同时启用了Windows身份验证和匿名身份验证。
my api is both windows authentication and anonymous authentication enabled.
这是在Intranet上。
this is on an intranet.
推荐答案(已解决)我得到了类似的答案尝试将 Tour of Heroes Angular 7演示转换为对远程MySQL DB进行REST调用时发生错误。我什至尝试将Apache服务器移动到本地计算机上:
(SOLVED) I had been getting a similar error while trying to convert the Tour of Heroes Angular 7 Demo to make REST calls to a remote MySQL DB. I had even tried moving the Apache server to my local machine:
通过' http:// localhost / angular-php-app / backend '来自来源' http:// localhost:4200 已被CORS政策阻止:对预检请求的响应未通过访问控制检查:预检请求不允许重定向。
Access to XMLHttpRequest at 'localhost/angular-php-app/backend' from origin 'localhost:4200' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: Redirect is not allowed for a preflight request.
解决方案,我在这里找到它-> http://blog.wsoft .se / category / tips-tricks /
The SOLUTION, I found it here -> blog.wsoft.se/category/tips-tricks/
这是我在我的角度应用程序中所做的事情:
Here is what I did within my angular app:
/tour-of-heroes-mysql>npm install -g cors-proxy-server ...Roaming\npm\cors-proxy-server -> ...Roaming\npm\node_modules\cors-proxy-server\index.js + cors-proxy-server@1.0.2 added 8 packages from 10 contributors in 2.376s启动它
Started it up
tour-of-heroes-mysql>HOST=127.0.0.1 PORT=9090 cors-proxy-server & [1] 17172 /tour-of-heroes-mysql>[Sun Jan 27 2019 10:52:13 GMT-0500 (Eastern Standard Time)] - CORS Proxy Server started on 127.0.0.1:9090编辑heroes.service以更改URL以包括代理
edit heroes.service to change the URL to include the proxy
private heroesUrl = 'localhost/angular-php-app/backend'; // URL to web api --> private heroesUrl = 'localhost:9090/localhost/angular-php-app/backend'保存了更改并开始工作!!!!
注意: PUT操作存在一些问题,不确定代理是否正确处理了这些操作。发现这是使用CHROME的更好解决方案,只需通过将目标上的Windows属性调整为以下方式来禁用检查:
Saved the changes and IT WORKED!!!!
NOTE: Had some problems with "PUT" operations, not sure if the proxy was handling those properly. Found this as a better solution using CHROME, just disable the check by adjusting the Windows Properties on the target, to this:
"C:\Program Files (x86)\Google\Chrome\Application\chrome.exe" --disable-web-security --user-data-dir="C:/ChromeDevSession"(注意-启动CHROME时会收到不支持警告,但它可以工作。在您的特殊快捷方式上桌面,仅用于测试)
(NOTE - you will get a warning 'unsupported' when you start CHROME, but it works. Make a special shortcut on your desktop, use ONLY FOR TESTING)
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