Is it feasible to send an AJAX POST request to a server with a distinct domain while utilizing basic authentication?

I have encountered an issue while attempting to send a POST request to a server with a different domain that necessitates basic authentication.

Despite my best efforts in experimenting with beforeSend and withCredentials, the basic auth headers do not get included in the OPTIONS preflight request.

 $.ajax({
      url: anotherdomain,
      data: data,
      cache: false,
      contentType: false,
      processData: false,
      type: 'POST',
      dataType:'json',
      xhrFields: {
         withCredentials: true
      },
      crossDomain: true,
      beforeSend: function(xhr) {
        xhr.setRequestHeader('Authorization', 'Basic *');
          xhr.withCredentials = true;        
      }

I have found that changing the dataType to 'jsonp' or switching the request type to GET allows for successful completion of the request. Is removing the Basic Auth requirement from the anotherdomain server during OPTIONS requests the only viable solution?

Thank you.

javascriptajaxpostbasic-authenticationpreflight

Answer №1

Make sure to include headers on the server for proper functionality: Below is a PHP example (note that this allows access from all origins, but it's recommended to restrict it to the site making the AJAX request):

header('Access-Control-Allow-Origin: *');
header('Access-Control-Allow-Methods: GET, PUT, POST, DELETE, OPTIONS');
header('Access-Control-Max-Age: 1000');
header('Access-Control-Allow-Headers: Content-Type, Authorization, X-Requested-With');

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