How do I resolve the "Cross-Origin-Opener-Policy policy will prevent the window.closed call" error in my React app? This error appears to be related to the Cross-Origin-Opener-Policy (COOP) policy set on the server. How can I handle this error and ensure that my React app runs properly while respecting the COOP policy restrictions? enter image description here
So far I've searched and learned that I need to set Cross-Origin-Opener-Policy: unsafe-none Cross-Origin-Opener-Policy: same-origin-allow-popups Cross-Origin-Opener-Policy: same-origin But I don't know where and how to set it.
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$ npm install corsvar express = require('express') var cors = require('cors') var app = express() app.use(cors()) app.get('/products/:id', function (req, res, next) { res.json({msg: 'This is CORS-enabled for all origins!'}) }) app.listen(80, function () { console.log('CORS-enabled web server listening on port 80') })For more details please see:https://www.npmjs.com/package/cors
Note:
CORS must be enabled on the server running the API. You cannot enable this feature in client code. If the API supports CORS, the browser will initiate a request