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I have my express server running on http://localhost:3000 (I call this web-server) I have another application running on localhost:8100 (I call this simply 'app')
When my app makes a call to the webserver I receive the message:
"XMLHTTPReqeust cannot load http://localhost:3000/auth/facebook. Response to preflight request doesn't pass access control check. A wildcard '*' cannot be used in the 'Access-Control-Allow-Origin' when the credentials flag is true. Origin 'http://localhost:81000' is therefore not allowed acecss"
This message shows up in the browser console.
I have setup the following options in the middleware of my node webserver
res.header('Access-Control-Allow-Origin', '*'); res.header('Access-Control-Allow-Methods', 'GET,PUT, POST,DELETE'); After reading few stackoverfow questions, I also added the following:
res.header('Access-Control-Allow-Origin', 'http://localhost:8100'); however this does not resolve the issue.
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Enable All CORS Requests If you want to enable CORS for all the request you can simply use the cors middleware before configuring your routes: const express = require('express'); const cors = require('cors'); const app = express(); app.
1 Answer. Show activity on this post. Install cors library npm install cors --save and use it like so. I already bye-pass cors with request library.
CORS stands for Cross-Origin Resource Sharing . It allows us to relax the security applied to an API. This is done by bypassing the Access-Control-Allow-Origin headers, which specify which origins can access the API.
I use cors and implement it so, it's very simple
var cors=require('cors');
app.use(cors({origin:true,credentials: true}));
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