Angular - API call 404 Not Found with code OK with Postman

I'm new here. I apologize in advance if I write nonsense or wrong things, but I've only just started programming. I'm helping a friend renew his site. I made the new site using Angular with VSCode. We're uploading it to cPanel where the old site is currently. I created a new test folder inside public_html and so far everything is working. The problem arises when we try to make a post call

`addtest(title: string, description: string, price: number) {
const endpoint = 'https://www.mydomain.it/test/api/ads.php';
const body = {
title,
description,
price
};
console.log('Request body:', body);
console.log('API URL:', endpoint);
return this.http.post(endpoint, body).pipe(
catchError(err => {
console.error('Error addtest:', err);
return of({ message: 'Error: ' + err.message });
})
);
}`


I created the api folder with ads.php inside, the code is below

`<?php
header('Access-Control-Allow-Origin: *');
header('Access-Control-Allow-Methods: POST, GET, OPTIONS');
header('Access-Control-Allow-Headers: Content-Type, Authorization');
header('Content-Type: application/json');

$host = "localhost:3306";
$db = "tecnoimmobiliare_test_annunci";
$user = "tecnoimmobiliare_admin";
$pass = "NPmLQfqO!4Si";

$conn = new mysqli($host, $user, $pass, $db);
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}

$data = json_decode(file_get_contents("php://input"), true);

$title = $conn->real_escape_string($data['titolo']);
$description = $conn->real_escape_string($data['descrizione']);
$price = floatval($data['prezzo']);

$sql = "INSERT INTO test_ads (title, description, price) VALUES ('$title','$description', $price)";

if ($conn->query($sql) === TRUE) {
echo json_encode(["success" => true, "message" => "Ad placed successfully"]);
} else {
echo json_encode(["success" => false, "message" => "Error while inserting: " . $conn->error]);
}

$conn->close();
?>`


this call points to this file that should add a new ad to the database.

But when I start it and in the browser console the console.log tells me 404 not found without details and in the network tab the call is not there (no ads.php).

I tested the call with Postman and everything works correctly. Has this happened to anyone of you? Can you help me?

I'm trying to add a new ad to the database, I expect to find it but I get 404 not found in the browser console

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