cors

问题 I am trying to get authorize from Fitbit. when I use Oauth2.0 frontend angular4 getAuthFromFitbit() { this.http.get(this.BASE_URL + "/fitbit").subscribe(res => { console.log(res.json()); });} backend node.js then I got this problem: 回答1: The error you see in the browser console is coming from a fitbit request, not from your server. Setting headers on your server will not help much in your case. 回答2: This is a Cross Origin Resource Sharing issue. You need to disable CORS in your browser. 回答3:

问题 I was having some issues getting SVGs to load on my website if you were viewing website.com instead of www.website.com. The website is on an nginx server, so I added this, and it solved the issue: location / { add_header Access-Control-Allow-Origin "*"; } However, based off what i've read, it seems like this is causes a security problem? Is there a way to only specify www.website.com and website.com instead of *? I ask because I came across this in PHP and it seems like what I need but for

问题 Why do I need to set Access-Control-Allow-Origin to * for an MP3 file so that it can be loaded by websites of other domains? What's the security risk with this? Or is it just to prevent other's from display content that you didn't authorize them to (assuming browsers support CORS)? 回答1: Most video players are initialized using JS in script tags, and video is fetch through a XMLHttpRequest . According to the docs: For security reasons, browsers restrict cross-origin HTTP requests initiated

问题 I am 99% sure that i set the rules correctly for my firebase realtime database. React-Redux is used for by both react app that call the firebase However the problem is quite puzzling, 1) I created a new react app and try to do an axios POST/GET to the firebase but CORS error keep happening 2) I used my old react app and call the same API as (1) no CORS error and the POST request went through. 3) I test that the API works using postman, both POST and GET request went through 4) I also verified

问题 I am on a website https://aaa.shared.com . This website (call it A ) sends an xhr request to url https://zzz.shared.com/some/path (website Z ) and receives a response with the following headers: access-control-allow-credentials: true access-control-allow-origin: aaa.shared.com set-cookie: foo=bar; expires=Fri, 01 Jan 2100 00:00:00 GMT; path=/; secure; samesite=none; httponly (I followed answer on this question to add access-control headers) Now, what I would expect is that whenever I am on

问题 I'm creating a project that uses Vue.js (as a client) and Python (as a server). Python is used for some calculation and the Vue.js is used for the interface. I'm connecting them using python-socketio (https://python-socketio.readthedocs.io/en/latest/) and Vue-socket.io (https://github.com/MetinSeylan/Vue-Socket.io). Some weeks ago it was working just fine. The connection and communication was happening succefully. But a couple days ago I tried running the same code again and this error

问题 I assume that the default blocking of custom headers in cors requests is to prevent some kind of attack. Is that assumption correct? If so, what's the attack? from https://developer.mozilla.org/en-US/docs/Web/HTTP/Methods/OPTIONS In CORS, a preflight request with the OPTIONS method is sent, so that the server can respond whether it is acceptable to send the request with these parameters. The Access-Control-Request-Method header notifies the server as part of a preflight request that when the

问题 I assume that the default blocking of custom headers in cors requests is to prevent some kind of attack. Is that assumption correct? If so, what's the attack? from https://developer.mozilla.org/en-US/docs/Web/HTTP/Methods/OPTIONS In CORS, a preflight request with the OPTIONS method is sent, so that the server can respond whether it is acceptable to send the request with these parameters. The Access-Control-Request-Method header notifies the server as part of a preflight request that when the

问题 I'm working on a C# API and doing a GET request from my frontend and for that to happen I need to enable cors in my API, but I can't seem to do it! It's a .NET Core 3 API and I've tried following this tutorial and I've also tried installing the 2.2 NuGet Package for it via: dotnet add package Microsoft.AspNetCore.Cors --version 2.2.0 But I still get a cors error when doing my GET request. When trying the [EnableCors] annotation I get an error saying "The EnableCorsAttribute could not be found

问题 I'm working on a C# API and doing a GET request from my frontend and for that to happen I need to enable cors in my API, but I can't seem to do it! It's a .NET Core 3 API and I've tried following this tutorial and I've also tried installing the 2.2 NuGet Package for it via: dotnet add package Microsoft.AspNetCore.Cors --version 2.2.0 But I still get a cors error when doing my GET request. When trying the [EnableCors] annotation I get an error saying "The EnableCorsAttribute could not be found