Last change
on this file since bdd6491 was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago |
initial commit
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Property mode
set to
100644
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File size:
894 bytes
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[6a3a178] | 1 | 'use strict';
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| 2 |
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| 3 | var inherits = require('inherits')
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| 4 | , AjaxBasedTransport = require('./lib/ajax-based')
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| 5 | , XhrReceiver = require('./receiver/xhr')
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| 6 | , XHRCorsObject = require('./sender/xhr-cors')
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| 7 | , XHRLocalObject = require('./sender/xhr-local')
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| 8 | ;
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| 9 |
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| 10 | function XhrPollingTransport(transUrl) {
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| 11 | if (!XHRLocalObject.enabled && !XHRCorsObject.enabled) {
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| 12 | throw new Error('Transport created when disabled');
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| 13 | }
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| 14 | AjaxBasedTransport.call(this, transUrl, '/xhr', XhrReceiver, XHRCorsObject);
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| 15 | }
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| 16 |
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| 17 | inherits(XhrPollingTransport, AjaxBasedTransport);
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| 18 |
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| 19 | XhrPollingTransport.enabled = function(info) {
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| 20 | if (info.nullOrigin) {
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| 21 | return false;
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| 22 | }
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| 23 |
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| 24 | if (XHRLocalObject.enabled && info.sameOrigin) {
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| 25 | return true;
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| 26 | }
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| 27 | return XHRCorsObject.enabled;
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| 28 | };
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| 29 |
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| 30 | XhrPollingTransport.transportName = 'xhr-polling';
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| 31 | XhrPollingTransport.roundTrips = 2; // preflight, ajax
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| 32 |
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| 33 | module.exports = XhrPollingTransport;
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