Server : nginx/1.18.0 System : Linux localhost 6.14.3-x86_64-linode168 #1 SMP PREEMPT_DYNAMIC Mon Apr 21 19:47:55 EDT 2025 x86_64 User : www-data ( 33) PHP Version : 8.0.16 Disable Function : pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_get_handler,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,pcntl_async_signals,pcntl_unshare, Directory :  /var/www/ecommerce/node_modules/sockjs-client/lib/transport/

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'use strict';

var inherits = require('inherits')
  , AjaxBasedTransport = require('./lib/ajax-based')
  , XhrReceiver = require('./receiver/xhr')
  , XHRCorsObject = require('./sender/xhr-cors')
  , XHRLocalObject = require('./sender/xhr-local')
  ;

function XhrPollingTransport(transUrl) {
  if (!XHRLocalObject.enabled && !XHRCorsObject.enabled) {
    throw new Error('Transport created when disabled');
  }
  AjaxBasedTransport.call(this, transUrl, '/xhr', XhrReceiver, XHRCorsObject);
}

inherits(XhrPollingTransport, AjaxBasedTransport);

XhrPollingTransport.enabled = function(info) {
  if (info.nullOrigin) {
    return false;
  }

  if (XHRLocalObject.enabled && info.sameOrigin) {
    return true;
  }
  return XHRCorsObject.enabled;
};

XhrPollingTransport.transportName = 'xhr-polling';
XhrPollingTransport.roundTrips = 2; // preflight, ajax

module.exports = XhrPollingTransport;