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JavaScript View Page Source

/ Published in: JavaScript
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  1. function viewSource() {
  2.     var httpRequest;
  3.     try {
  4.         httpRequest = new XMLHttpRequest();
  5.     }catch(trymicrosoft) {
  6.         try {
  7.             httpRequest = new ActiveXObject("Msxml2.XMLHTTP");
  8.         } catch(oldermicrosoft) {
  9.             try {
  10.                 httpRequest = new ActiveXObject("Microsoft.XMLHTTP");
  11.             } catch(failed) {
  12.                 httpRequest = false;
  13.             }
  14.         }
  15.     }
  16.     if(!httpRequest) {
  17.         return false;
  18.     }
  19.  
  20.     httpRequest.onreadystatechange = function() {
  21.         if(httpRequest.readyState == 4) {
  22.             if(httpRequest.status == 200) {
  23.                 document.body.innerHTML = '<pre id="pageSource"></pre>';
  24.                 document.getElementById('pageSource').innerText = httpRequest.responseText;
  25.             }
  26.         }
  27.     }
  28.     httpRequest.open('GET',document.location.href,true);
  29.     httpRequest.send(null);        
  30. }

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