logo
down
shadow

CORS Response Header (Intermittently) not being returned in IIS - Web API


CORS Response Header (Intermittently) not being returned in IIS - Web API

By : Allison Bradshaw
Date : November 22 2020, 09:00 AM
I wish did fix the issue. After thinking about what I posted in the edit...and making the assumption that the CORS was being disabled after a app pool recycle. I decided to move the piece of code the enables the CORS config.EnableCors(); in the class WebApiConfig to protected void Application_Start() in the global.asax file. So my Application_Start() routine looks something like this now:
code :
protected void Application_Start()
        {
            AreaRegistration.RegisterAllAreas();
            GlobalConfiguration.Configuration.EnableCors();
            GlobalConfiguration.Configure(WebApiConfig.Register);`


Share : facebook icon twitter icon
API Gateway intermittently returns "No 'Access-Control-Allow-Origin' header is present..." when the CORS OPTIO

API Gateway intermittently returns "No 'Access-Control-Allow-Origin' header is present..." when the CORS OPTIO


By : István Marhefka
Date : March 29 2020, 07:55 AM
should help you out Although my answer is relatively quick, this post was a last ditch effort after days of researching. Turns out the issue isn't truly related to CORS, but it's related to the use of the async context within the Startup.cs class.
The failure that this question was about was specifically on an async POST method. This app is still in its early stages, so there weren't a lot of async methods for me to play with. I had assumed it was a higher level failure; however, it was actually a failure of the async context at the controller level.
Spring boot 2.0.5 project CORS issue: add the CORS header to the http response

Spring boot 2.0.5 project CORS issue: add the CORS header to the http response


By : Alex K
Date : March 29 2020, 07:55 AM
wish help you to fix your issue I know lots of posts in SO are talking about this. But I have tried half a day but still failed. , Add this Additional Configuration in your project.
code :
@Configuration
public class AdditionalConfig {

    @Bean
    public CorsFilter corsFilter() {
        UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
        CorsConfiguration config = new CorsConfiguration();
        config.setAllowCredentials(true);
        config.addAllowedOrigin("*");
        config.addAllowedHeader("*");
        config.addAllowedMethod("*");
        source.registerCorsConfiguration("/**", config);
        return new CorsFilter(source);
    }
}

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletResponse;

public class CORSFilter implements Filter {

    @Override
    public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain)
            throws IOException, ServletException {

    HttpServletRequest request = (HttpServletRequest) req;
    HttpServletResponse response = (HttpServletResponse) res;
        response.setHeader("Access-Control-Allow-Origin", "*");
        response.setHeader("Access-Control-Allow-Credentials", "true");
        response.setHeader("Access-Control-Allow-Methods", "POST, GET, PUT, OPTIONS, DELETE");
        response.setHeader("Access-Control-Max-Age", "3600");
        response.setHeader("Access-Control-Allow-Headers",
                "X-Requested-With, Content-Type, Authorization, Origin, Accept, Access-Control-Request-Method, Access-Control-Request-Headers");
        chain.doFilter(req, res);
    }

    @Override
    public void init(FilterConfig filterConfig) {
    }

    @Override
    public void destroy() {
    }

}



Marketo munchkin.js calls returning no response intermittently. (CORS)

Marketo munchkin.js calls returning no response intermittently. (CORS)


By : Kevin C.
Date : March 29 2020, 07:55 AM
I wish did fix the issue. I am the developer for Munchkin.js at Marketo Inc.
The CORS errors reported by Firebug do not interfere with any Munchkin/Page functionality. They are caused by an optimization in the current version of munchkin which tries to release the XHR connection as soon as it has reported the page activity to Marketo. Firebug mis-reports this as a CORS error. Other browsers correctly report this as cancelled.
CORS in .NET CORE 2.1 - no header returned for simple configuration

CORS in .NET CORE 2.1 - no header returned for simple configuration


By : Aashish Sonawane
Date : March 29 2020, 07:55 AM
fixed the issue. Will look into that further You'll need to add an Origin header in Postman to get an corresponding response.
CORS problem with Angular and laravel even after setting the CORS header and server response

CORS problem with Angular and laravel even after setting the CORS header and server response


By : T Zhang
Date : October 13 2020, 07:00 PM
it fixes the issue Since you are new to angular, I suggest you to go for the solution to set up a proxy configuration. Bypass the proxy using angular-cli. In this way, the one who talks with the API server is Angular CLI server.
Create a proxy config file in the project folder: proxy.config.json with the following content.
code :
{
 "/api/*": {
    "target": "http://skewcommerce.test/api",
    "secure": false,
    "pathRewrite": {"^/api" : ""}
  }
}
ng serve  —-proxy-config proxy.conf.json
this.httpClient.get('api/data/users'));
Related Posts Related Posts :
  • How to validate Entry control on Button clicked Event and Textchanged event in xamarin.forms?
  • Windows Workflow Foundation 4.5 (WF45) with ASP.NET 5
  • How do I change the .net version in a Windows Phone project?
  • The repository pattern is procedural, not OOP?
  • Self Contained WPF .net
  • Create a new instance of a form and keep it open
  • Redirect to controller action from custom IHttpHandler
  • Simple CefSharp application is missing files at runtime
  • C# code to search exact file name in Windows folder
  • Re-Run Event in VB.NET Windows Forms
  • vb.net how to pause while loop until user clicks button?
  • How can i update one specific dotnet assembly in Universal Windows Platform app?
  • Visual Basic random number generation
  • Asynchronously read cmd output in .NET - Hanging on process input request
  • How to get all TextBox controls of a Form
  • MVC 5 application on IIS
  • regex parsing with as few as possible
  • How to manually upload rdl file in reporting server in ssrs.
  • Is there faster base-2 conversion than Convert.ToString(byte,2)?
  • Issue Installing Entity Framework 7 RC1
  • ClickOnce Publish: Install button fails, but launch link works
  • Nuget difference beetween DNXCore5.0, NETCore4.5 and .NETPlatform5.2
  • Using timer to send textbox lines to notepad
  • FHIR .NET API: Can't read web resource
  • Is React and Visual Studio 2013 a good combination?
  • Downloading Google Sheets worksheets as CSV files
  • Running multiple applications on the same Azure WebRole (Cloud Services)
  • DynamoDB .NET how to get the items JSON and directly return to client side
  • Regex: 9 integers but spaces and minus characters allowed
  • Visual Studio Professional 2015 and Windows 10 - All kinds of IDE errors
  • What platforms need to include Microsoft.Bcl.* NuGet packages?
  • .NET - Process started by Windows Service is killed prematurely if the service runs as LocalSystem (as opposed to Admini
  • Could not load file or assembly 'Newtonsoft.Json, Version=6.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed' or
  • Using project.json in csproj Class Library
  • Adding Microsoft Accounts to Azure Active Directory
  • Ionic2 using Visual Studio 2015
  • shadow
    Privacy Policy - Terms - Contact Us © animezone.co