axios add no cors 1 Axios ( { 2 method: 'post', 3 I send out a short email each friday with code snippets, tools, techniques, and interesting stuff from around the web. This question was voluntarily removed by its author. Access-Control-Allow-Origin is for CORS, and the client honor this header when dealing with the cross-origin request. These CORS headers are what will tell the web browser whether or not it is allowed to make the response from your API available to your front end JavaScript. You need to configure cors at your server side. CORS stands for Cross-Origin Resource Sharing. All this does isnothing, because it returns a CORS error. Open the console in your browser devtools. For example, if a site offers an embeddable service, it may be necessary to relax certain restrictions. // build a function to retrieve data from an API! Heres a live example of me using this method. First, you can encounter this Error because an incorrect url passed the fetch method. The server can permit sharing by sending back Access-Control-* headers in the response. If it does exist then make sure there is no URL mismatch with the website. Access to fetch at 'https://www.metaweather.com/api/location/2430683/' The browser then checks for CORS headers set on the resource response. Try it on that repl.it above and youll see its a pretty easy solution, but today were going to build our own API Proxy. Cross-Origin Resource Sharing (CORS) is an HTTP-header based mechanism that allows a server to indicate any other origins (domain, scheme, or port) than its own from which a browser should permit loading of resources. Head to the directory containing your Express application in your terminal, and let's get it installed: npm install cors. Here are some things that have helped me out along the way: Independent Node.js consultant and educator, Click to share on Twitter (Opens in new window), Click to share on LinkedIn (Opens in new window), Click to share on Reddit (Opens in new window), Use the GitHub CLI to help reduce context switching, Path of an XMLHttpRequest(XHR) through CORS. from origin 'null' has been blocked by CORS policy: Cross origi. This will fix the problem, you can even extract out the checking status part as a function which returns a promise or throw error. "cors" - the default, cross-origin requests are allowed, as described in Fetch: Cross-Origin Requests, "same-origin" - cross-origin requests are forbidden, "no-cors" - only safe cross-origin requests are allowed. This happens for almost all of the s3-hosted images. Okay I'm going to let it slide but just so you know, that wasn't actually a question. The fetch event # The fetch event lets us intercept every network request made by the PWA in the service worker's scope, for both same-origin and cross-origin requests. Then select " Disable Cross-Origin . Join 300+ subscribers. Then the server calls the API using the AXIOS get method and returns the data to you. CORS won't apply to or