如何在web api 2中启用跨源请求？ [英] How to enable cross-origin request in web api 2?

问题描述

I know its not a big issue to resolve ,But i am facing problem to consume web api in asp.net MVC web api.

I am getting below error:
"XMLHttpRequest cannot load http://192.168.1.71:800/api/IzoGlass/ToolLocationData. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://localhost:58469' is therefore not allowed access".

I've searched and find solution but not working fine with my application.

Description :-When i am consuming web api from same domain in my application its working fine.

but whenever i am consuming webapi from other domain its throwing error. given above.

我尝试过：



我在webapi.config文件中使用了这段代码。



var cors = new EnableCorsAttribute（http://192.168.1.71 ，*，*）;

config.EnableCors（cors）;

What I have tried:

I've used this code inside webapi.config file.

var cors = new EnableCorsAttribute("http://192.168.1.71", "*", "*");
config.EnableCors(cors);

推荐答案

在ASP.NET Web API 2中启用跨源请求ASP.NET站点 [ ^ ]



您需要启用的来源是客户端的地址，因此http：// localhost：58469在你的情况下，而不是192.168.1.71，或者你可以使用*来启用所有可能有用作测试但可能不适合生产使用的来源。但是，您不希望将webapi编码到您的开发网络服务器地址，因为这将改变。

Enabling Cross-Origin Requests in ASP.NET Web API 2 | The ASP.NET Site[^]

The origin you need to enable is the address of the client, so "http://localhost:58469" in your case, not 192.168.1.71, or you could use a * to enable all origins which might be useful as a test but maybe not ideal for production use. However you wouldn't want to code your webapi to your dev webserver address either as that will change.

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