https://stackoverflow.com › questions › 42589882
NodeJS - CORS middleware `origin` undefined - Stack OverflowI have an app using the cors npm package as middleware. I have it set up like this: if(process.env.NODE_ENV === 'production') {. var whitelist = ['http://mywebsite.com', 'https://mywebsite.com'] var corsOptions = {. origin: (origin, callback) => {. var originIsWhitelisted = whitelist.indexOf(origin) !== -1;
https://stackoverflow.com › questions › 61378602
CORS origin undefined with simple nodejs server - Stack OverflowThere is a solution to solve this by adding a middleware: app.use(function (req, res, next) { req.headers.origin = req.headers.origin || req.headers.host; next(); }); I hope these helps.
https://dev.to › mc-stephen › how-to-fix-cors-origin-error-in-javascript-3nd3
How to Fix CORS Origin Error in Javascript - DEV CommunityIf you are trying to make an AJAX request to a different domain using JavaScript, you may encounter a CORS origin error. Here are some steps you can take to fix the CORS origin error in JavaScript:
https://expressjs.com › en › resources › middleware › cors.html
Express cors middlewareConfiguring CORS w/ Dynamic Origin. This module supports validating the origin dynamically using a function provided to the origin option. This function will be passed a string that is the origin (or undefined if the request has no origin), and a callback with the signature callback(error, origin).
https://medium.com › @dtkatz › 3-ways-to-fix-the-cors-error-and-how-access-control-allow...
3 Ways to Fix the CORS Error — and How the Access-Control-Allow-Origin ...Fix one: install the Allow-Control-Allow-Origin plugin. The quickest fix you can make is to install the moesif CORS extension. Once installed, click it in your browser to activate the...
https://forum.strapi.io › t › cors-changed-in-4-22-0-my-cors-settings-no-longer-work-but...
CORS changed in 4.22.0 & my cors settings no longer work but origin ...Using standard CORS config as `'strapi::cors'` fix the issue. ### Steps to reproduce the behavior 1. Update Strapi to 4.4.4 2. Make sure to have custom CORS policy in `middleware.js`, e.g.: ```js { name: "strapi::cors", config: { enabled: true, headers: "*", origin: env.array("ALLOWED_ORIGINS_URL"), // for example: http://localhost ...
https://developer.mozilla.org › fr › docs › Web › HTTP › CORS
Cross-origin resource sharing (CORS) - HTTP | MDN - MDN Web DocsLe CORS permet de prendre en charge des requêtes multi-origines sécurisées et des transferts de données entre des navigateurs et des serveurs web. Les navigateurs récents utilisent le CORS dans une API contenante comme XMLHttpRequest ou Fetch pour aider à réduire les risques de requêtes HTTP multi-origines.
https://www.slingacademy.com › article › fixing-nodejs-express-error-cross-origin-requests
Fixing Node.js & Express Error for Cross Origin RequestsTo fix CORS errors in an Express application, you need to set the appropriate headers that allow cross-origin requests. You can do this by setting the headers manually or by using the cors middleware.
https://developer.mozilla.org › en-US › docs › Web › HTTP › CORS
Cross-Origin Resource Sharing (CORS) - HTTP | MDN - MDN Web DocsCross-Origin Resource Sharing (CORS) is an HTTP -header based mechanism that allows a server to indicate any origins (domain, scheme, or port) other than its own from which a browser should permit loading resources.
https://www.reddit.com › ... › comments › efo5ba › im_getting_origin_undefined_at_cors_middleware
I'm getting "origin" undefined at CORS middleware : r/node - RedditThe Origin header only applies to requests from another page not on the same origin. A lack of Origin header means you're on the same origin as the current request. You can't test CORS by visiting the url in the browser.
