How to Avoid CORS Errors When Redirecting GET Requests from ReactJS?

Redirect GET Requests from ReactJS to Avoid CORS Errors

When ReactJS sends a GET request to a backend server and receives a 302 redirect to a third-party site (e.g., an SSO page), a CORS error may occur due to restrictions on cross-origin requests. To resolve this issue, it's recommended to handle the redirection on the client side within the browser.

Client-Side Redirection

Instead of relying on server-side redirection, which can trigger CORS errors, perform the redirect within the browser using JavaScript. This approach eliminates the CORS issue because the browser directly accesses the SSO website's URL.

React Router

React allows you to programmatically handle navigation using React Router. However, this solution might be more complex.

Window.Location

A simpler alternative is to use the window.location object:

<code class="javascript">window.location.href = "https://www.example.com";</code>

This redirects the user to the specified URL, potentially causing issues with the browsing history. However, it's a straightforward way to handle the redirection without triggering CORS errors.

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