NodeJS express get request is not working on mobile

Question

I'm working on a web application. Everything was developed locally, and everything works perfectly. I made the app available on digitalocean. Everything works properly when I access the site from a desktop computer, but express get requests do not work on mobile devices.

This is the app.js code.

const express = require('express');
const app = express();
const fetch = require('node-fetch');
app.listen(3000, () => console.log("Listening at 3000"));
app.use(express.static('public'));
app.use(express.json({limit: '1mb'}));
const hogan = require('hogan.js');
const fs = require('fs');

//GOOGLE PLACES AUTO COMPLETE
app.get('/placesAC/:input', async (request, response) => {
    const userInput = request.params['input'];    
    const placesAPI = 'https://maps.googleapis.com/maps/api/place/autocomplete/json?';
    const placeConditions = '&region=tr';
    const APIKey = '&key=MY_API_KEY';
    const input = 'input=' + userInput;

    const finalURL = placesAPI + input + placeConditions + APIKey;

    const fetch_response = await fetch(finalURL);
    const json = await fetch_response.json();

    response.json(json);

    console.log(userInput);
});

I'm getting it from the client in this manner.

 const inputVal = fromText.value;
    const apiURL = '/placesAC/' + inputVal;
    const response = await fetch(apiURL);
    const json = await response.json();

Answer 1

For your API call, try to add try-catch to handle the errors,maybe it helps you to debug what's wrong with your code

try {
      const apiURL = '/placesAC/'+ inputVal;
      const response = await fetch(apiURL);
    if (!response.ok) // or check for response.status
        throw new Error(response.statusText);

        const json = await response.json();
} catch (err) {
    console.log(err)
}

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