How to handel error “Response to preflight request doesn't pass access control check: The value of the...
I am trying to send Http POST request to web-api2 sever in my localhost.
my client run on http://localhost:4200 and my server run on http://localhost/MemoryGameServer/api/Test.
(Different Origin)
I have angular7 client code:
signUp(user: User){
const body : any = {
"FullName": "FullName",
"UserName": "UserName",
"Password": "Password",
"Email": "Email",
"UserId": 2
}
var headerOptions = new HttpHeaders({ 'Content-Type':'application/json' });
return this.http.post(this.rootUrl + 'Test1', JSON.stringify(body), {
headers: headerOptions,
withCredentials: true
});
}
and I have web api 2 server code:
public class clsTest
{
public string FullName { get; set; }
public string UserName { get; set; }
public string Password { get; set; }
public string Email { get; set; }
public int UserId { get; set; }
}
[RoutePrefix("api")]
[EnableCors(origins: "http://localhost:4200", headers: "*", methods: "*")]
public class MainController : ApiController
{
[Route("Test1"), HttpPost]
public IHttpActionResult Test1(clsTest data)
{
return Ok("OK!!");
}
}
my WebApiConfig.cs File: (Updated)
public static void Register(HttpConfiguration config)
{
EnableCorsAttribute cors = new EnableCorsAttribute("http://localhost:4200", "*", "*")
{
SupportsCredentials = true
};
config.EnableCors(cors);
config.Routes.MapHttpRoute(
name: "DefaultApi",
routeTemplate: "api/{controller}/{id}",
defaults: new { id = RouteParameter.Optional }
);
}
But I am getting error:
How can I fix it?
I need to make http post request with Json object to the server.
Thank you!
UPDATE:
I added this code to my web.config file:
<httpProtocol>
<customHeaders>
<add name="Access-Control-Allow-Origin" value="http://localhost:4200" />
<add name="Access-Control-Allow-Headers" value="Origin, X-Requested-With, Content-Type, Accept, Access-Control-Allow-Origin" />
<add name="Access-Control-Allow-Methods" value="POST,GET,OPTIONS,PUT,DELETE" />
<add name="Access-Control-Allow-Credentials" value="true" />
</customHeaders>
</httpProtocol>
And now I am getting this error:
c# angular http asp.net-web-api2
|
show 1 more comment
I am trying to send Http POST request to web-api2 sever in my localhost.
my client run on http://localhost:4200 and my server run on http://localhost/MemoryGameServer/api/Test.
(Different Origin)
I have angular7 client code:
signUp(user: User){
const body : any = {
"FullName": "FullName",
"UserName": "UserName",
"Password": "Password",
"Email": "Email",
"UserId": 2
}
var headerOptions = new HttpHeaders({ 'Content-Type':'application/json' });
return this.http.post(this.rootUrl + 'Test1', JSON.stringify(body), {
headers: headerOptions,
withCredentials: true
});
}
and I have web api 2 server code:
public class clsTest
{
public string FullName { get; set; }
public string UserName { get; set; }
public string Password { get; set; }
public string Email { get; set; }
public int UserId { get; set; }
}
[RoutePrefix("api")]
[EnableCors(origins: "http://localhost:4200", headers: "*", methods: "*")]
public class MainController : ApiController
{
[Route("Test1"), HttpPost]
public IHttpActionResult Test1(clsTest data)
{
return Ok("OK!!");
}
}
my WebApiConfig.cs File: (Updated)
public static void Register(HttpConfiguration config)
{
EnableCorsAttribute cors = new EnableCorsAttribute("http://localhost:4200", "*", "*")
{
SupportsCredentials = true
};
config.EnableCors(cors);
config.Routes.MapHttpRoute(
name: "DefaultApi",
routeTemplate: "api/{controller}/{id}",
defaults: new { id = RouteParameter.Optional }
);
}
But I am getting error:
How can I fix it?
I need to make http post request with Json object to the server.
Thank you!
UPDATE:
I added this code to my web.config file:
<httpProtocol>
<customHeaders>
<add name="Access-Control-Allow-Origin" value="http://localhost:4200" />
<add name="Access-Control-Allow-Headers" value="Origin, X-Requested-With, Content-Type, Accept, Access-Control-Allow-Origin" />
<add name="Access-Control-Allow-Methods" value="POST,GET,OPTIONS,PUT,DELETE" />
<add name="Access-Control-Allow-Credentials" value="true" />
</customHeaders>
</httpProtocol>
And now I am getting this error:
c# angular http asp.net-web-api2
stackoverflow.com/questions/51569826/…
– Giollia
Nov 28 '18 at 18:11
I'm pretty sure you want to pass theEnableCorsAttribute
variablecors
into theEnableCors
method.
– Jonathon Chase
Nov 28 '18 at 18:12
@JonathonChase I dont understand how to do it?
– user3223332
Nov 28 '18 at 18:15
@user3223332 In your WebApiConfig.cs, try moving the declaration ofcors
to the top, then changeconfig.EnableCors();
toconfig.EnableCors(cors);
– Jonathon Chase
Nov 28 '18 at 18:17
@JonathonChase Yes Thank you but it did not solved the probloem :/
– user3223332
Nov 28 '18 at 18:18
|
show 1 more comment
I am trying to send Http POST request to web-api2 sever in my localhost.
my client run on http://localhost:4200 and my server run on http://localhost/MemoryGameServer/api/Test.
(Different Origin)
I have angular7 client code:
signUp(user: User){
const body : any = {
"FullName": "FullName",
"UserName": "UserName",
"Password": "Password",
"Email": "Email",
"UserId": 2
}
var headerOptions = new HttpHeaders({ 'Content-Type':'application/json' });
return this.http.post(this.rootUrl + 'Test1', JSON.stringify(body), {
headers: headerOptions,
withCredentials: true
});
}
and I have web api 2 server code:
public class clsTest
{
public string FullName { get; set; }
public string UserName { get; set; }
public string Password { get; set; }
public string Email { get; set; }
public int UserId { get; set; }
}
[RoutePrefix("api")]
[EnableCors(origins: "http://localhost:4200", headers: "*", methods: "*")]
public class MainController : ApiController
{
[Route("Test1"), HttpPost]
public IHttpActionResult Test1(clsTest data)
{
return Ok("OK!!");
}
}
my WebApiConfig.cs File: (Updated)
public static void Register(HttpConfiguration config)
{
EnableCorsAttribute cors = new EnableCorsAttribute("http://localhost:4200", "*", "*")
{
SupportsCredentials = true
};
config.EnableCors(cors);
config.Routes.MapHttpRoute(
name: "DefaultApi",
routeTemplate: "api/{controller}/{id}",
defaults: new { id = RouteParameter.Optional }
);
}
But I am getting error:
How can I fix it?
I need to make http post request with Json object to the server.
Thank you!
UPDATE:
I added this code to my web.config file:
<httpProtocol>
<customHeaders>
<add name="Access-Control-Allow-Origin" value="http://localhost:4200" />
<add name="Access-Control-Allow-Headers" value="Origin, X-Requested-With, Content-Type, Accept, Access-Control-Allow-Origin" />
<add name="Access-Control-Allow-Methods" value="POST,GET,OPTIONS,PUT,DELETE" />
<add name="Access-Control-Allow-Credentials" value="true" />
</customHeaders>
</httpProtocol>
And now I am getting this error:
c# angular http asp.net-web-api2
I am trying to send Http POST request to web-api2 sever in my localhost.
my client run on http://localhost:4200 and my server run on http://localhost/MemoryGameServer/api/Test.
(Different Origin)
I have angular7 client code:
signUp(user: User){
const body : any = {
"FullName": "FullName",
"UserName": "UserName",
"Password": "Password",
"Email": "Email",
"UserId": 2
}
var headerOptions = new HttpHeaders({ 'Content-Type':'application/json' });
return this.http.post(this.rootUrl + 'Test1', JSON.stringify(body), {
headers: headerOptions,
withCredentials: true
});
}
and I have web api 2 server code:
public class clsTest
{
public string FullName { get; set; }
public string UserName { get; set; }
public string Password { get; set; }
public string Email { get; set; }
public int UserId { get; set; }
}
[RoutePrefix("api")]
[EnableCors(origins: "http://localhost:4200", headers: "*", methods: "*")]
public class MainController : ApiController
{
[Route("Test1"), HttpPost]
public IHttpActionResult Test1(clsTest data)
{
return Ok("OK!!");
}
}
my WebApiConfig.cs File: (Updated)
public static void Register(HttpConfiguration config)
{
EnableCorsAttribute cors = new EnableCorsAttribute("http://localhost:4200", "*", "*")
{
SupportsCredentials = true
};
config.EnableCors(cors);
config.Routes.MapHttpRoute(
name: "DefaultApi",
routeTemplate: "api/{controller}/{id}",
defaults: new { id = RouteParameter.Optional }
);
}
But I am getting error:
How can I fix it?
I need to make http post request with Json object to the server.
Thank you!
UPDATE:
I added this code to my web.config file:
<httpProtocol>
<customHeaders>
<add name="Access-Control-Allow-Origin" value="http://localhost:4200" />
<add name="Access-Control-Allow-Headers" value="Origin, X-Requested-With, Content-Type, Accept, Access-Control-Allow-Origin" />
<add name="Access-Control-Allow-Methods" value="POST,GET,OPTIONS,PUT,DELETE" />
<add name="Access-Control-Allow-Credentials" value="true" />
</customHeaders>
</httpProtocol>
And now I am getting this error:
c# angular http asp.net-web-api2
c# angular http asp.net-web-api2
edited Nov 28 '18 at 18:19
user3223332
asked Nov 28 '18 at 18:06
user3223332user3223332
546
546
stackoverflow.com/questions/51569826/…
– Giollia
Nov 28 '18 at 18:11
I'm pretty sure you want to pass theEnableCorsAttribute
variablecors
into theEnableCors
method.
– Jonathon Chase
Nov 28 '18 at 18:12
@JonathonChase I dont understand how to do it?
– user3223332
Nov 28 '18 at 18:15
@user3223332 In your WebApiConfig.cs, try moving the declaration ofcors
to the top, then changeconfig.EnableCors();
toconfig.EnableCors(cors);
– Jonathon Chase
Nov 28 '18 at 18:17
@JonathonChase Yes Thank you but it did not solved the probloem :/
– user3223332
Nov 28 '18 at 18:18
|
show 1 more comment
stackoverflow.com/questions/51569826/…
– Giollia
Nov 28 '18 at 18:11
I'm pretty sure you want to pass theEnableCorsAttribute
variablecors
into theEnableCors
method.
– Jonathon Chase
Nov 28 '18 at 18:12
@JonathonChase I dont understand how to do it?
– user3223332
Nov 28 '18 at 18:15
@user3223332 In your WebApiConfig.cs, try moving the declaration ofcors
to the top, then changeconfig.EnableCors();
toconfig.EnableCors(cors);
– Jonathon Chase
Nov 28 '18 at 18:17
@JonathonChase Yes Thank you but it did not solved the probloem :/
– user3223332
Nov 28 '18 at 18:18
stackoverflow.com/questions/51569826/…
– Giollia
Nov 28 '18 at 18:11
stackoverflow.com/questions/51569826/…
– Giollia
Nov 28 '18 at 18:11
I'm pretty sure you want to pass the
EnableCorsAttribute
variable cors
into the EnableCors
method.– Jonathon Chase
Nov 28 '18 at 18:12
I'm pretty sure you want to pass the
EnableCorsAttribute
variable cors
into the EnableCors
method.– Jonathon Chase
Nov 28 '18 at 18:12
@JonathonChase I dont understand how to do it?
– user3223332
Nov 28 '18 at 18:15
@JonathonChase I dont understand how to do it?
– user3223332
Nov 28 '18 at 18:15
@user3223332 In your WebApiConfig.cs, try moving the declaration of
cors
to the top, then change config.EnableCors();
to config.EnableCors(cors);
– Jonathon Chase
Nov 28 '18 at 18:17
@user3223332 In your WebApiConfig.cs, try moving the declaration of
cors
to the top, then change config.EnableCors();
to config.EnableCors(cors);
– Jonathon Chase
Nov 28 '18 at 18:17
@JonathonChase Yes Thank you but it did not solved the probloem :/
– user3223332
Nov 28 '18 at 18:18
@JonathonChase Yes Thank you but it did not solved the probloem :/
– user3223332
Nov 28 '18 at 18:18
|
show 1 more comment
1 Answer
1
active
oldest
votes
Below are the steps from Microsoft guidelines to "Enable CORS".
First, add the CORS NuGet package.
Install-Package Microsoft.AspNet.WebApi.Cors
Open the file App_Start/WebApiConfig.cs. Add the following code to the WebApiConfig.Register method:
public static void Register(HttpConfiguration config)
{
// New code
config.EnableCors();
config.Routes.MapHttpRoute(
name: "DefaultApi",
routeTemplate: "api/{controller}/{id}",
defaults: new { id = RouteParameter.Optional }
);
}
Next, add the [EnableCors] attribute to the Controller class:
using System.Net.Http;
using System.Web.Http;
using System.Web.Http.Cors;
namespace WebService.Controllers
{
[EnableCors(origins: "http://localhost:4200", headers: "*", methods: "*")]
public class MainController : ApiController
{
// Controller methods not shown...
}
}
This allows cross-origin requests from WebClient, while still disallowing all other cross-domain requests.
Do not include a forward slash at the end of the origins URL.
It didn't worked. I got error: Access to XMLHttpRequest at 'localhost:51492/api/GetGameResult' from origin 'localhost:4200' 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.
– user3223332
Dec 1 '18 at 13:10
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
Below are the steps from Microsoft guidelines to "Enable CORS".
First, add the CORS NuGet package.
Install-Package Microsoft.AspNet.WebApi.Cors
Open the file App_Start/WebApiConfig.cs. Add the following code to the WebApiConfig.Register method:
public static void Register(HttpConfiguration config)
{
// New code
config.EnableCors();
config.Routes.MapHttpRoute(
name: "DefaultApi",
routeTemplate: "api/{controller}/{id}",
defaults: new { id = RouteParameter.Optional }
);
}
Next, add the [EnableCors] attribute to the Controller class:
using System.Net.Http;
using System.Web.Http;
using System.Web.Http.Cors;
namespace WebService.Controllers
{
[EnableCors(origins: "http://localhost:4200", headers: "*", methods: "*")]
public class MainController : ApiController
{
// Controller methods not shown...
}
}
This allows cross-origin requests from WebClient, while still disallowing all other cross-domain requests.
Do not include a forward slash at the end of the origins URL.
It didn't worked. I got error: Access to XMLHttpRequest at 'localhost:51492/api/GetGameResult' from origin 'localhost:4200' 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.
– user3223332
Dec 1 '18 at 13:10
add a comment |
Below are the steps from Microsoft guidelines to "Enable CORS".
First, add the CORS NuGet package.
Install-Package Microsoft.AspNet.WebApi.Cors
Open the file App_Start/WebApiConfig.cs. Add the following code to the WebApiConfig.Register method:
public static void Register(HttpConfiguration config)
{
// New code
config.EnableCors();
config.Routes.MapHttpRoute(
name: "DefaultApi",
routeTemplate: "api/{controller}/{id}",
defaults: new { id = RouteParameter.Optional }
);
}
Next, add the [EnableCors] attribute to the Controller class:
using System.Net.Http;
using System.Web.Http;
using System.Web.Http.Cors;
namespace WebService.Controllers
{
[EnableCors(origins: "http://localhost:4200", headers: "*", methods: "*")]
public class MainController : ApiController
{
// Controller methods not shown...
}
}
This allows cross-origin requests from WebClient, while still disallowing all other cross-domain requests.
Do not include a forward slash at the end of the origins URL.
It didn't worked. I got error: Access to XMLHttpRequest at 'localhost:51492/api/GetGameResult' from origin 'localhost:4200' 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.
– user3223332
Dec 1 '18 at 13:10
add a comment |
Below are the steps from Microsoft guidelines to "Enable CORS".
First, add the CORS NuGet package.
Install-Package Microsoft.AspNet.WebApi.Cors
Open the file App_Start/WebApiConfig.cs. Add the following code to the WebApiConfig.Register method:
public static void Register(HttpConfiguration config)
{
// New code
config.EnableCors();
config.Routes.MapHttpRoute(
name: "DefaultApi",
routeTemplate: "api/{controller}/{id}",
defaults: new { id = RouteParameter.Optional }
);
}
Next, add the [EnableCors] attribute to the Controller class:
using System.Net.Http;
using System.Web.Http;
using System.Web.Http.Cors;
namespace WebService.Controllers
{
[EnableCors(origins: "http://localhost:4200", headers: "*", methods: "*")]
public class MainController : ApiController
{
// Controller methods not shown...
}
}
This allows cross-origin requests from WebClient, while still disallowing all other cross-domain requests.
Do not include a forward slash at the end of the origins URL.
Below are the steps from Microsoft guidelines to "Enable CORS".
First, add the CORS NuGet package.
Install-Package Microsoft.AspNet.WebApi.Cors
Open the file App_Start/WebApiConfig.cs. Add the following code to the WebApiConfig.Register method:
public static void Register(HttpConfiguration config)
{
// New code
config.EnableCors();
config.Routes.MapHttpRoute(
name: "DefaultApi",
routeTemplate: "api/{controller}/{id}",
defaults: new { id = RouteParameter.Optional }
);
}
Next, add the [EnableCors] attribute to the Controller class:
using System.Net.Http;
using System.Web.Http;
using System.Web.Http.Cors;
namespace WebService.Controllers
{
[EnableCors(origins: "http://localhost:4200", headers: "*", methods: "*")]
public class MainController : ApiController
{
// Controller methods not shown...
}
}
This allows cross-origin requests from WebClient, while still disallowing all other cross-domain requests.
Do not include a forward slash at the end of the origins URL.
answered Nov 30 '18 at 11:43
RAGHVENDER KATARIARAGHVENDER KATARIA
1515
1515
It didn't worked. I got error: Access to XMLHttpRequest at 'localhost:51492/api/GetGameResult' from origin 'localhost:4200' 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.
– user3223332
Dec 1 '18 at 13:10
add a comment |
It didn't worked. I got error: Access to XMLHttpRequest at 'localhost:51492/api/GetGameResult' from origin 'localhost:4200' 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.
– user3223332
Dec 1 '18 at 13:10
It didn't worked. I got error: Access to XMLHttpRequest at 'localhost:51492/api/GetGameResult' from origin 'localhost:4200' 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.
– user3223332
Dec 1 '18 at 13:10
It didn't worked. I got error: Access to XMLHttpRequest at 'localhost:51492/api/GetGameResult' from origin 'localhost:4200' 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.
– user3223332
Dec 1 '18 at 13:10
add a comment |
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stackoverflow.com/questions/51569826/…
– Giollia
Nov 28 '18 at 18:11
I'm pretty sure you want to pass the
EnableCorsAttribute
variablecors
into theEnableCors
method.– Jonathon Chase
Nov 28 '18 at 18:12
@JonathonChase I dont understand how to do it?
– user3223332
Nov 28 '18 at 18:15
@user3223332 In your WebApiConfig.cs, try moving the declaration of
cors
to the top, then changeconfig.EnableCors();
toconfig.EnableCors(cors);
– Jonathon Chase
Nov 28 '18 at 18:17
@JonathonChase Yes Thank you but it did not solved the probloem :/
– user3223332
Nov 28 '18 at 18:18