How to fix "Invalid Host Header" for a React component

I had my first static site deployed at . Then I added a React webapp component (after following this tutorial: in the same project. DigitalOcan gave me a new HTTP route to but when I try to access it I get the error “Invalid Host Header”.

When deploying the React component, I did not specify any HTTP requests in anyway as I was crueless how to manually configure it. Many StackExchange websites (ex. say to fix disableHostCheck, but I do not have any file that specifies the script.

Does anyone know how to fix the issue? Please also let me know if this is not enough information to debug.

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