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Getting "Invalid Host header" when trying to deploy React app.

Posted on June 25, 2024

I’m making a website with React.js, and built and deployed my app. Though the build and deployment were successful, opening the test domain does not render the website and instead just displays a message of “Invalid Host header”. Note: This is not a static page, as the javascript has to send some requests to my Python FastAPI backend.



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Hey!

Even though the app would be making requests to a backend service, you should still deploy it as a static website. All of your JavaScript functionality will still be available.

You can follow the steps on how to deploy a React app as a static component here:

https://www.digitalocean.com/community/tutorials/how-to-deploy-a-react-application-to-digitalocean-app-platform

Let me know if this works!

- Bobby

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