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34 lines
1016 B
34 lines
1016 B
'use strict'; |
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// The simplest and most robust transport, using the well-know cross |
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// domain hack - JSONP. This transport is quite inefficient - one |
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// message could use up to one http request. But at least it works almost |
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// everywhere. |
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// Known limitations: |
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// o you will get a spinning cursor |
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// o for Konqueror a dumb timer is needed to detect errors |
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var inherits = require('inherits') |
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, SenderReceiver = require('./lib/sender-receiver') |
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, JsonpReceiver = require('./receiver/jsonp') |
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, jsonpSender = require('./sender/jsonp') |
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; |
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function JsonPTransport(transUrl) { |
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if (!JsonPTransport.enabled()) { |
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throw new Error('Transport created when disabled'); |
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} |
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SenderReceiver.call(this, transUrl, '/jsonp', jsonpSender, JsonpReceiver); |
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} |
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inherits(JsonPTransport, SenderReceiver); |
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JsonPTransport.enabled = function() { |
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return !!global.document; |
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}; |
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JsonPTransport.transportName = 'jsonp-polling'; |
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JsonPTransport.roundTrips = 1; |
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JsonPTransport.needBody = true; |
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module.exports = JsonPTransport;
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