firebase receive JSON via HTTP request - arrays

firebase:
how to get remote config information via HTTP in the form of a JSON request, without modules?
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Firebase Remote Config provides REST endpoints you can use to get your project's remote config. See https://firebase.google.com/docs/reference/remote-config/rest

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Nginx Configuration for react production deployment

In the React project, I used proxy in package.json to route the traffic of backend api calls to the backend server address.enter image description here. And in the project, I used axios to send requests such as: enter image description here I do not have to add any prefix in the request of axios api calls. However, what should I config in the Nginx after I running npm run build in the nginx.conf?
Here is the nginx config file, in which I have already defined a "/" proxyenter image description here What should I write to route the traffic of api calls in the production environment?

Is there a way to send an HTTP request using Vercel?

I just deployed my React app to Vercel, but it's not being able to send HTTP requests, I'm getting this error:
This request has been blocked; the content must be served over HTTPS
My backend is deployed on ECS with an HTTP endpoint, what could I do to solve this? I already tried to set a meta tag, but it didn't work.

tried to access the data via axios but Response to preflight request doesn't pass access control check

I was working over react and made a request using axios but in the browser it shows "Response to preflight request doesn't pass access control check" i had installed the corx extension but still getting the same error
Assuming you are using create-react-app you can try defining a proxy property in your package.json file and give the url to your api server, something like
"proxy": "http://localhost:8000".
This will proxy your api calls through the express server provided within create-react-app without the need for any CORS configuration in your browser
Note : This can be only used in your local environment and for production setup, you should try alternate approaches by configuring CORS setting in the API server or hosting the UI and API applications under the same hostname

How to fix "net::ERR_CERT_AUTHORITY_INVALID" when sending a request to an https:// API?

I have a React application (create-react-app) running on http://localhost:3000/ and I need to send a request to an API (Java with Spring Boot) that is available on "https://review-feature-...api/partner".
However, when I send the request, I get the following error on my Chrome console:
POST https://review-feature-...api/partner net::ERR_CERT_AUTHORITY_INVALID
I've tried to change my React application to run on https://localhost:3000, but it doesn't work because I have a Keycloak authorization server running behind my React app, so I have to find a way to send the request using http://localhost:3000/ anyway.
I've also tried to use the following environment variables (How can I provide a SSL certificate with create-react-app?) but it doens't work.
SSL_CRT_FILE=.cert/server.crt
SSL_KEY_FILE=.cert/server.key
Thanks in advance.

How can i fix cors error in react and laravel project

I am sending a request from my react app localhost:8080 to my lumen api localhost:8000 to retrieve json data.
This is my routes.php in lumen: $app->get('list', 'ArticleController#listAll');
You will need to install fruitcake/laravel-cors library and follow the instructions to create a middleware and such

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