[enter image description here][1]I am having trouble getting my Sanity io posts to render. This is the error I am getting this error.
post:1
Access to XMLHttpRequest at 'https://wuj77i1.api.sanity.io/v1/data/query/production?query=*' from origin 'http://localhost:3000' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.
browser-request.js:117
GET https://wuj77i1.api.sanity.io/v1/data/query/production?query=*\ net::ERR_FAILED 403
Can you recommend any solutions to overriding the CORS Origin?
I have added the localhost of my React Project to allow credentials but I am still getting this error.
Images of the Error message [1]: https://i.stack.imgur.com/lJCyQ.jpg
It looks like your projectId is incomplete (it should be eight characters but there are only seven) in your client configuration. You're getting a CORS error because you're trying to get data from a project that doesn't have CORS origins set (since it doesn't exist).
I had a CORS problem too - I had added https://localhost:3000/ to CORS origins in Sanity.io with Credentials set to allowed but still got the error. My mistake was having the wrong Project ID.
(**Note I'm using ViteJS instead of NPM)
Click on the copy beside the Project ID ->
Then paste it in your .env file, right beside REACT_APP_SANITY_PROJECT_ID
Finally, in your Sanity client.js file make sure you are pointing to the correct environment variable.
Related
I am trying to setup a Cloud Gateway between React App and NodeJS application
Below is error I am getting on ReactApp:
Access to XMLHttpRequest at 'http://localhost:8080/graphql' from origin 'http://localhost:3000' 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.
I am already tried below link, as much may be with newer version of Cloud Gateway it is not working.
Attempt #1:
spring.cloud.gateway.globalcors.cors-configurations.[/**].allowedOrigins=*
spring.cloud.gateway.globalcors.cors-configurations.[/**].allowedMethods=*
With this I was getting Header issue so I added:
spring.cloud.gateway.globalcors.cors-configurations.[/**].allowedHeaders=*
I am getting below error:
The 'Access-Control-Allow-Origin' header contains multiple values 'http://localhost:3000, *', but only one is allowed.
Attempt #2:
I tried adding the following bean:
#Bean
Function<GatewayFilterSpec, UriSpec> brutalCorsFilters() {
return f -> f
.setResponseHeader("Access-Control-Allow-Origin", "*")
.setResponseHeader("Access-Control-Allow-Methods", "*")
.setResponseHeader("Access-Control-Expose-Headers", "*");
}
But still no luck
Repo: https://github.com/shah-smit/quizroulette-spring-cloud-api-gateway
Please check your configuration carefully, it should be your configuration that caused multiple values, refer to this
The 'Access-Control-Allow-Origin' header contains multiple values
Maybe you can debug your code and find out where 'Access-Control-Allow-Origin' becomes two values.
Anyone Please Help me I need to submit my project this week I am getting a problem for a week.
Error is :-->
Access to XMLHttpRequest at 'http://127.0.0.1:8000/list/single/2' from origin 'http://localhost:3000' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.
Please Help me 😢
When you want to access the server from your react app it is called a Cross Origin request, by default a domain it is not allowed to access API hosted on another domain.
Your ReactJs app is on a port ( 3000 ) and your server on another and this cause this problem.
You have to enable CORS on your server.
You can try with :
pip install django-cors-headers
More on this you can find here
I am trying to get a login screen to work on React, still new to this stuff. I have finally gotten requests to at least partially work, but now I am getting this error
Access to XMLHttpRequest at 'http://localhost:5000/login' from origin 'http://localhost:3000' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource
I read a few articles and came across this one https://medium.com/#dtkatz/3-ways-to-fix-the-cors-error-and-how-access-control-allow-origin-works-d97d55946d9
Which says to use this code
Access-Control-Allow-Origin: http://localhost:3000
But I am not sure exactly where this line of code should go.
I believe this needs to be fixed on the API. I'm not sure what you're hosting on your API on, but if it's express, then doing something like:
const cors = require('cors');
app.use(cors());
Alternatively, for testing purposes, you can install cors plugins on chrome and firefox.
I am getting an error when I try to make request from my react SPA application to get id and access token from Azure AD. Below is the error from the browser console log:
Access to XMLHttpRequest at 'https://login.microsoftonline.com/{tenant id}/oauth2/token' from origin 'http://localhost:3000' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.
I am trying PKCE flow for my SPA and I am not using any JS library. I am making hte request with plain XMLHttpRequest.
Please suggest what I am missing.
You can use this error with install "Allow CORS: Access-Control-Allow-Origin" or same extention on your browser.
I am using a flask server with an angular front end. Up until recently, I was running the project on my local and had no issues.
I now moved my project to a remote server and have been getting the following error. I am not sure what i'm doing wrong:
My error:
XMLHttpRequest cannot load http://ec2-..../api/loginStatus/. No
'Access-Control-Allow-Origin' header is present on the requested
resource. Origin 'http://localhost:8100' is therefore not allowed
access. The response had HTTP status code 503.
The snippets of my flask server side code (where I am adding my headers to the response is given below):
#app.after_request
def after_request(response):
response.headers.add('Access-Control-Allow-Origin','http://localhost:8100')
response.headers.add('Access-Control-Allow-Headers', 'Content-Type,Authorization')
response.headers.add('Access-Control-Allow-Methods', 'GET,PUT,POST,DELETE')
response.headers.add('Access-Control-Allow-Credentials', 'true')
return response
I use both restangular and $http methods in my front end angularjs.
I have added the following lines in the .config of my main module:
.config(['RestangularProvider', '$stateProvider', '$urlRouterProvider','$httpProvider',
function(RestangularProvider, $stateProvider, $urlRouterProvider,$httpProvider) {
//$httpProvider.defaults.useXDomain = true;
$httpProvider.defaults.headers.common['Access-Control-Allow-Origin'] = "http://localhost:8100";
$httpProvider.defaults.withCredentials = true;
$httpProvider.defaults.headers.common = 'Content-Type: application/json';
delete $httpProvider.defaults.headers.common['X-Requested-With'];
Would someone be able to help me out here? I've referred to a lot of material and I am not sure what i'm doing wrong.
PS: I am getting 200 status messages on my server. I am therefore assuming that the error is in my front end and not my server side. Please correct me if I am wrong
Regards,
Sunil
EDIT
Hi everyone, I have solved the issue. I would like to thank #Mathijs Segers and #Hassan Mehmood for their inputs.
It turns out that there was a nginx configuration issue which led to the server becoming unavailable.
Firstly, there was an issue with the symbolic link that was being created for the flask backend (I am running my server side through a git repo on /home/username and then creating a symbolic link at /var/www/sitename.com
I was also throttling the number of requests that can be sent in a second (users could send only 1 every 2 seconds) resulting in the 503 error.
The original code I put up worked fine after I fixed it.
Eyooo, it is actually on your server side. You need to provide correct headers.
So you've tried this, I have no experience with flask but this I don't like;
response.headers.add('Access-Control-Allow-Origin','http://localhost:8100')
for testing purposes I suggest you just change the http:// part, to *
so
response.headers.add('Access-Control-Allow-Origin','*')
If that doesn't work verify that the header is actually being set, you could use a different program which doesn't care for CORS like postman or directly calling it in the browser if it doesn't depend on Accept headers.
here is some more readings about what it all is about.
https://developer.mozilla.org/en-US/docs/Web/HTTP/Access_control_CORS
EDIT:
Ok silly of me: The response had HTTP status code 503.
This part in the error actually states what kind of response your server is giving, so currently there is an error on your server side. This happens when it is f/e down or what not.
So it seems that you're not doing anything strange, but your server side seems broken.
XMLHttpRequest cannot load http://ec2-..../api/loginStatus/. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://localhost:8100' is therefore not allowed access. The response had HTTP status code 503.
So this error here, I suggest looking at your headers, and maybe disable some. You currently allow only 2 request headers that might cause some issues as well?
Flask-CORS
A Flask extension for handling Cross Origin Resource Sharing (CORS), making cross-origin AJAX possible.
Installation
Install the extension with using pip, or easy_install.
$ pip install -U flask-cors
Simple Usage
In the simplest case, initialize the Flask-Cors extension with default arguments in order to allow CORS for all domains on all routes. Read More.
from flask import Flask
from flask_cors import CORS, cross_origin
app = Flask(__name__)
CORS(app)
#app.route("/")
def helloWorld():
return "Hello, cross-origin-world!"
Reference: https://flask-cors.readthedocs.io/en/latest/