We have a local development enviorment (localhost/) that communicates with our development API on a remote server (api-dev.host.com). After the latest Chrome upgrade, I am getting the following console error when attempting to communicate from localhost to the remote server: While the link in the error does d…
Tag: cors
Invoking Firebase Function from Firebase hosting code blocked by CORS
I’ve initialized a templated Firebase project with functions & hosting features. I’ve uncommented the templated HTTP function: And Also added the following code to the templated public/index.html file: I’ve tried making this work with multiple configurations: Firebase emulator for hostin…
Keycloak returns CORS Access-Control-Allow-Origin error
I am able to login to Keycloak using the keycloak-js client, however, when making a fetch request, I get the following error: The post request I am making is The keycloak settings are Root URL: http://localhost:8080 Valid Redirect URIs: http://localhost:8080 Base URL: / Admin URL: Empty Web Origins: * // but …
how to get data use fetch API correctly in vue js?
I’m trying to fetch data from the backend using the GET method, but I always fail to get the data. I get the following error: CORS header ‘Access-Control-Allow-Origin’ missing. I don’t know how it happens because I tried to use POST method to my backend it worked. Here’s a capture of my brow…
cors error even after allowing all origins *
i have a post request on my at http://localhost:3000 and request resources from http://localhost:5500 even after allowing all origins it gives error. I’m stuck on this for a few hours now please help. i get this error this is where i’m setting my header this is my fetch request Answer Try below. A…
Are tags subject to the same CORS restrictions as javascript/fetch calls?
It’s common practice to include scripts from other origins with script tags but when you use fetch calls on other origins then everything must be configured carefully other wise you will get a CORS error. Does the script tag somehow bypass CORS? How does that work? Answer The Same Origin Policy prevents…
Is it possible to add a request header to a CORS preflight request?
I have a website that accesses an API from an external server (not the server that serves the website) via a plain XmlHttpRequest (see below). That API requires an API key for accessing the service to be added as request header. However, as these are CORS requests the browser first does a preflight request to…
Empty body in fetch POST request
I’m struggling with the fetch API in Javascript. When I try to POST something to my server with fetch method, the request body contains an empty array. But when I use Postman it works. Here is my server-side code in Node.js: Here is my client-side code: The problem is that the req.body is empty on serve…
CORS Errors only with 400 bad request react fetch request
I’m trying to make ‘POST’ request in react but i’m getting a few problems regarding CORS. I was just following what console says and fix them in server side [which is PHP] and client side everything works fine when the status is 200 but when status 400 it shows login:1 Failed to load h…
cors-anywhere.herokuapp.com not working (503). What else can I try?
I am trying to send a get request to the Wikipedia API. I am sending the request form a angular frontend so i’m trying to use the Heroku CORS Anywhere endpoint to avoid CORS issues. For some reason, I’m still getting a 503 response saying no access-control-allow-origin header is present on the req…