Top "Cors" questions

Use this tag when you see a message in the browser devtools console about CORS (Cross-Origin Resource Sharing) — e.g., your browser logged an error about Access-Control-Allow-Origin, and you want to know how to eliminate the error.

Access-Control-Allow-Origin error sending a jQuery Post to Google API's

I read a lot for the 'Access-Control-Allow-Origin' error, but I don't understand what I have to fix :( I'm playing with …

jquery ajax google-api cors jsonp
Request header field Access-Control-Allow-Headers is not allowed by itself in preflight response

I have come across CORS issues multiple times and can usually fix it but I want to really understand by …

express cors meanjs
Request header field Access-Control-Allow-Headers is not allowed by Access-Control-Allow-Headers

I'm trying to send files to my server with a post request, but when it sends it causes the error: …

javascript angularjs post header cors
No 'Access-Control-Allow-Origin' header is present on the requested resource error

I'm trying to fetch the feed of a news website. Thought I'd use google's feed API to convert the feedburner …

javascript jquery json ajax cors
CORS: Cannot use wildcard in Access-Control-Allow-Origin when credentials flag is true

I have a setup involving Frontend server (Node.js, domain: localhost:3000) <---> Backend (Django, Ajax, domain: localhost:8000) Browser &…

ajax django node.js cors django-cors-headers
Why is an OPTIONS request sent and can I disable it?

I am building a web API. I found whenever I use Chrome to POST, GET to my API, there is …

http cors preflight
Why am I seeing an "origin is not allowed by Access-Control-Allow-Origin" error here?

I am seeing the following error: Origin http://localhost:8080 is not allowed by Access-Control-Allow-Origin with this code: var http = new …

javascript ajax cors xmlhttprequest youtube-api
Origin <origin> is not allowed by Access-Control-Allow-Origin

XMLHttpRequest cannot load http://localhost:8080/api/test. Origin http://localhost:3000 is not allowed by Access-Control-Allow-Origin. I read about cross domain …

javascript node.js ajax google-chrome cors
how to bypass Access-Control-Allow-Origin?

I'm doing a ajax call to my own server on a platform which they set prevent these ajax calls (but …

javascript php jquery ajax cors