How can I add a custom HTTP header to ajax request with js or jQuery?

Question

Does anyone know how to add or create a custom HTTP header using JavaScript or jQuery?

Answer 1

You can use js fetch

async function send(url,data) {
  let r= await fetch(url, {
        method: "POST", 
        headers: {
          "My-header": "abc"  
        },
        body: JSON.stringify(data), 
  })
  return await r.json()
}

// Example usage

let url='https://server.test-cors.org/server?enable=true&status=200&methods=POST&headers=my-header';

async function run() 
{
 let jsonObj = await send(url,{ some: 'testdata' });
 console.log(jsonObj[0].request.httpMethod + ' was send - open chrome console > network to see it');
}

run();