{"ast":null,"code":"'use strict'; // The simplest and most robust transport, using the well-know cross\n// domain hack - JSONP. This transport is quite inefficient - one\n// message could use up to one http request. But at least it works almost\n// everywhere.\n// Known limitations:\n//   o you will get a spinning cursor\n//   o for Konqueror a dumb timer is needed to detect errors\n\nvar inherits = require('inherits'),\n    SenderReceiver = require('./lib/sender-receiver'),\n    JsonpReceiver = require('./receiver/jsonp'),\n    jsonpSender = require('./sender/jsonp');\n\nfunction JsonPTransport(transUrl) {\n  if (!JsonPTransport.enabled()) {\n    throw new Error('Transport created when disabled');\n  }\n\n  SenderReceiver.call(this, transUrl, '/jsonp', jsonpSender, JsonpReceiver);\n}\n\ninherits(JsonPTransport, SenderReceiver);\n\nJsonPTransport.enabled = function () {\n  return !!global.document;\n};\n\nJsonPTransport.transportName = 'jsonp-polling';\nJsonPTransport.roundTrips = 1;\nJsonPTransport.needBody = true;\nmodule.exports = JsonPTransport;","map":null,"metadata":{},"sourceType":"script"}