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4
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1 'use strict';
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2
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3 function ajax(url,postData,context) {
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4 let request = new XMLHttpRequest();
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5 let method = postData ? 'POST' : 'GET';
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6 request.open( method, url );
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7 if( postData )
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8 request.setRequestHeader( 'Content-Type', 'application/x-www-form-urlencoded' );
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9 request.onload = function() {
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10 if( request.status !== 200 ) {
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11 console.log( 'ajax failed: ' + request.status );
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12 if( request.responseText )
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13 document.write('<pre>'+request.responseText+'</pre>');
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14 return;
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15 }
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16 try {
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17 eval( request.responseText );
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18 } catch(e) {
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19 console.log( request.responseText );
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20 window.err = '\najax-url = ' + url;
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21 throw e;
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22 }
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23 };
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24 request.send(postData);
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25 }
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26
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27 window.onerror = function(msg, url, line, col, error) {
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28 if (!url)
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29 return;
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30 let err = msg;
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31 err += '\nurl = ' + url;
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32 if (url != window.location)
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33 err += '\npage = ' + window.location;
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34 err += '\nline = '+line;
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35 if (col)
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36 err += '\ncolumn = ' + col;
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37 if (error && error.stack)
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38 err += '\nstack = ' + error.stack;
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39 if( window.err ) {
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40 err += window.err;
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41 window.err = null;
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42 }
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43 ajax( '/error_log.js', 'err='+encodeURIComponent(err) );
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44 };
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45
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46 function logout() {
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47 document.cookie = 'user=; Max-Age=0; path=/;';
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48 location = '/';
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49 }
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