I am trying to post the page body via an XMLHttpRequest
var params = "type=search" + "&content="+encodeURIComponent(document.getElementsByTagName("body")[0].innerHTML); xmlhttp.open("POST", "/service/p.aspx", true); xmlhttp.setRequestHeader("Content-type", "application/x-www-form-urlencoded"); xmlhttp.setRequestHeader("Content-length", params.length); xmlhttp.send(params); The following works fine for me in Firefox and IE8:
<html> <body> <script type="text/javascript"> // MAYBE FORGOT THIS PART? var xmlhttp = new XMLHttpRequest(); xmlhttp.onreadystatechange=function() { if (xmlhttp.readyState==4) { document.write(xmlhttp.responseText); } } // THIS PART IS EXACTLY LIKE YOURS var params = "type=search" + "&content="+encodeURIComponent(document.getElementsByTagName("body")[0].innerHTML); xmlhttp.open("POST", "/service/p.aspx", true); xmlhttp.setRequestHeader("Content-type", "application/x-www-form-urlencoded"); xmlhttp.setRequestHeader("Content-length", params.length); xmlhttp.send(params); </script> </body> </html> Perhaps you just forgot to declare xmlhttp and add a listener for the asynchronous status callback?
Also, see this SO question for more information about getting an XMLHttpRequest object in a cross-browser fashion.
Here is what is being sent in the POST request via FireBug in Firefox:
type=search&content=%0A%20%20%20%20%20%20%20%20%3Cscript%20type%3D%22text%2Fjavascript%22%3E%0A%2F%2F%20MAYBE%20FORGOT%20THIS%20PART%3F%0Avar%20xmlhttp%20%3D%20new%20XMLHttpRequest()%3B%0Axmlhttp.onreadystatechange%3Dfunction()%0A%7B%0A%20%20%20%20if%20(xmlhttp.readyState%3D%3D4)%0A%20%20%20%20%7B%0A%20%20%20%20%20%20%20%20document.write(xmlhttp.responseText)%3B%0A%20%20%20%20%7D%0A%7D%0A%0A%2F%2F%20THIS%20PART%20IS%20EXACTLY%20LIKE%20YOURS%0Avar%20params%20%3D%20%22type%3Dsearch%22%20%2B%20%22%26content%3D%22%2BencodeURIComponent(document.getElementsByTagName(%22body%22)%5B0%5D.innerHTML)%3B%0Axmlhttp.open(%22POST%22%2C%20%22%2Fservice%2Fp.aspx%22%2C%20true)%3B%0Axmlhttp.setRequestHeader(%22Content-type%22%2C%20%22application%2Fx-www-form-urlencoded%22)%3B%0Axmlhttp.setRequestHeader(%22Content-length%22%2C%20params.length)%3B%20%0Axmlhttp.send(params)%3B%0A%20%20%20%20%20%20%20%20%3C%2Fscript%3E So you have type which equals search, and content, which is the HTTP-encoded body of the HTML above, exactly as programmed. So it seems to be working as intended...
