Express.js response to Angular CORS Error

Question

I want Express server side redirect angular page.
I run express at localhost:3000
angular at localhost:4200
when Express redirect to Angular localhost:4200
I always get error

Failed to load http://localhost:4200/login: Request header field Authorization is not allowed by Access-Control-Allow-Headers in preflight response.

how to let angular accept cors response?

Possible duplicate https://stackoverflow.com/questions/43407783/how-to-overcome-cors-from-angular-2-to-node-express — Ash, Aug 09 '18 at 06:33
@ChatarSIngh because when google auth expired i want to redirect to login page — luk, Aug 09 '18 at 07:12

score 3 · Answer 1 · answered Aug 09 '18 at 06:44

3

Install cors package in your server-side express code

npm install --save cors

Use that in your server.js or app.js file where you implement all logic of express.js

const cors = require('cors');
app.use(cors());

It enables the cross-origin functionality, where you can access the request from another domain

answered Aug 09 '18 at 06:44

bajran

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but I want to send response to angular not send request to express is this server side problen? – luk Aug 09 '18 at 07:09
@luk https://stackoverflow.com/questions/32500073/request-header-field-access-control-allow-headers-is-not-allowed-by-itself-in-pr please check the link – bajran Aug 09 '18 at 07:52

Express.js response to Angular CORS Error

1 Answers1