cors

问题 I have implemented CORS in web API by using Cors library. [EnableCors(origins: "*", headers: "*", methods: "*")] and in webapi config file config.EnableCors(); I called api using POST method, still I was getting error in console i:e No 'Access-Control-Allow-Origin' header is present on the requested resource. Then I changed [EnableCors(origins: "*", headers: "*", methods: "*")] To [EnableCors(origins: "*", headers: "*", methods: "GET, POST, PUT, DELETE, OPTIONS")] Then its started working, my

问题 I just read this: same-origin policy allows inter-origin HTTP requests with GET and POST methods but denies inter-origin PUT and DELETE requests What is so special about PUT/DELETE? Why are they blocked? You can do an update/delete inside a POST method anyway. With CORS, why is a POST request preflighted if it uses xml/json rather than application/x-www-form-urlencoded? Please explain why some verbs are treated differently to others. 回答1: The fundamental distinction is between the kind of

问题 This is my stack: Frontend server: Node + ReactJS ( f.com ) Backend server (API): Golang ( b.com ) I'm doing this in development environment where I use create-react-app to run my frontend server via npm start command. I want to perform authentication using SSO served at sso.example.com/login . Ideally whenever there's a request to the Backend server without proper authorization, it will be responded with HTTP 302 Redirect to the SSO page. So the sequence is: ReactJS sends GET request to b

问题 I have encountered issue with CORS policy when developing Angular 8, ASP NET Core Web Api web application. My angular app is running on http://localhost:4200 There is one service created for communication with Web Api. It looks as follows @Injectable({ providedIn: 'root' }) export class AuthenticationService { apiUrl: string = ""; constructor(private http: HttpClient) { this.apiUrl = 'https://localhost:44316'; } login(Username: any, Password: any){ return this.http.post<Observable<ResultItem

问题 On my server I have two docker containers. One is docker Registry, and the other is Angular app that access first containers endpoint. Docker registry has mapped port 5000 and is proxied through Apache's virtual host to domain docker.mydomain.com. Angular app has port 5002 and is proxied to dockerhub.mydomain.com I set up a virtual host file for my docker registry like this: <VirtualHost *:80> ServerName docker.mydomain.com Redirect permanent / https://docker.mydomain.com/ </VirtualHost>

问题 I developing a web app using to AngularJs and REST API. The REST APIs are hosted on some different servers.When I calling to this REST APIs, I have this problem called CROS: XMLHttpRequest cannot load https://api.getevents.co/event?&lat=41.904196&lng=12.465974. The 'Access-Control-Allow-Origin' header has a value 'https://dev.getevents.co' that is not equal to the supplied origin. Origin 'http://localhost:8383' is therefore not allowed access. My code is this: modulo.controller(

问题 I want to authorize against the HP Alm Rest API, I think this "should" work, but it does not: function performSignIn(){ let headers = new Headers(); headers.append('Content-Type', 'application/json'); headers.append('Accept', 'application/json'); headers.append('Authorization', 'Basic ' + base64.encode(username + ":" + password)); fetch(sign_in, {mode: 'no-cors', method:'POST', headers: headers}) .then(response => response.json()) .then(json => console.log(json)) .catch(error => console.log(

问题 I'm trying to load images into the Aviary photo editor that I have integrated with my app. The photos are hosted on AWS, while my app is on Heroku. Whenever I load the photos into the app, they show up fine, however when I pass them into the Aviary SDK, which tries to load them onto the Adobe Cloud server, I get a CORS error: Image from origin 'https://s3.amazonaws.com' has been blocked from loading by Cross-Origin Resource Sharing policy: No 'Access-Control-Allow-Origin' header is present on

问题 I knew many questions and issues have been already made. But I can't find out clear answer to solve this issue. I use html2canvas to screenshot my page - with image from amazon s3 (cloudfront, too) I tried almost every answer from SO and html2canvas issues. I setup my S3 CORS to allow all / also set my bucket to public. Also I gave all public access to Everyone (Just to test if it works. I will block them after deploy) Here's my CORS for s3 <?xml version="1.0" encoding="UTF-8"?>

问题 I knew many questions and issues have been already made. But I can't find out clear answer to solve this issue. I use html2canvas to screenshot my page - with image from amazon s3 (cloudfront, too) I tried almost every answer from SO and html2canvas issues. I setup my S3 CORS to allow all / also set my bucket to public. Also I gave all public access to Everyone (Just to test if it works. I will block them after deploy) Here's my CORS for s3 <?xml version="1.0" encoding="UTF-8"?>