1 | <!DOCTYPE html>
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2 | <html>
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3 | <head>
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4 | <style>
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5 | .col {
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6 | float:left;
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7 | width:50%;
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8 | left:50%;
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9 | }
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10 | </style>
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11 | </head>
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12 |
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13 | <body>
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14 | <div class=col>
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15 | <h2>EventSource</h2>
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16 | <ul id=es-messages>
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17 | </ul>
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18 | </div>
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19 |
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20 | <div class=col>
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21 | <h2>EventSourcePolyfill</h2>
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22 | <ul id=es-polyfill-messages>
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23 | </ul>
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24 | </div>
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25 |
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26 | <script src=/eventsource-polyfill.js></script>
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27 |
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28 | <script>
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29 | function subscribe(es, ul) {
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30 | es.addEventListener('server-time', function (e) {
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31 | var li = document.createElement("LI");
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32 | li.appendChild(document.createTextNode(e.data));
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33 | ul.appendChild(li);
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34 | });
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35 | }
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36 |
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37 | subscribe(new EventSource('/sse'), document.getElementById('es-messages'));
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38 | subscribe(new EventSourcePolyfill('/sse'), document.getElementById('es-polyfill-messages'));
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39 | </script>
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40 | </body>
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