![]() ![]() This is not an option as the browser always deletes the response data when in no-cors mode to prevent data from being read by an unauthorized client. The second suggestion is to change the mode from cors to no-cors in the JavaScript fetch request. The message says that the browser has blocked the request because of a CORS policy. If an opaque response serves your needs, set the request’s mode to ‘no-cors’ to fetch the resource with CORS disabled. You will get a JavaScript error displayed in the console:Īccess to fetch at ‘ from origin ‘ has been blocked by CORS policy: No ‘Access-Control-Allow-Origin’ header is present on the requested resource. ![]() In Chrome it is *View** > Developer > Developer Tools. We are going to get JavaScript errors, so open your browser’s developer console so that we can see what is going on. Next, point a web browser at to display the web page. Origin: Make sure both the frontend and REST servers are running. Now, create a directory where all of our future code will live. Prerequisites to Building a Go Applicationįirst things first, if you don’t already have Go installed on your computer you will need to download and install the Go Programming Language.
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