Catch cross domain response in pure javascript ajax [duplicate]

Question

I want to catch cross domain response in pure javascript ajax not using jquery or other external libraries.

var xmlhttp, response;

try {
    xmlhttp = new XMLHttpRequest(); 
} catch(e) { 

   try { 
        xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
    } catch (e2) { 

       try {
            xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
        } catch (e) {}
    }
}

xmlhttp.onreadystatechange = function() {
    if (xmlhttp.readyState==4) { 
        if(callback != undefined) { 
              console.log(xmlhttp.responseText);
        }
    }
}

url = "http://xxxx.com/layer.php?callback=callRes";
xmlhttp.open("GET", url, false);
xmlhttp.setRequestHeader("Content-Type",
                    "application/json,application/javascript,text/javascript");
xmlhttp.send();

spent lots of time and googling but not find any solution

suggestions are most welcome but not script method only pure javascript ajax

Should not be possible. The Same Origin Policy can only be avoided by the use of some Browser Plugins. Why not JSONP? — XQDev
– XQDev, Commented Jul 31, 2014 at 13:37
as i mentioned in my question i want to use pure javascript ajax not script method — Man Programmer
– Man Programmer, Commented Jul 31, 2014 at 13:45
Where is the response coming from? Do you have access to adjust the headers? If so use CORS and adjust the headers to allow your front end code access. This can even be accomplished on S3 if the resource you're requesting is on there. — ness-EE
– ness-EE, Commented Jul 31, 2014 at 13:52

ness-EE · Accepted Answer · 2014-07-31 13:50:05Z

0

I assume you want to see the response in console.

Before calling console.log() you are checking to see if callback exists. In the given piece of code callback is not yet defined so maybe this is the only barrier preventing the output of xmlhttp.responseText.

Solution: remove if (callback != undefined) and just call console.log(xmlhttp.responseText)

edited Jul 31, 2014 at 13:50

ness-EE

1,41016 silver badges20 bronze badges

answered Jul 31, 2014 at 13:38

chm-software.com

3512 silver badges10 bronze badges

Sign up to request clarification or add additional context in comments.

3 Comments

Man Programmer Over a year ago

i'm trying this but unfortunately it not working

chm-software.com Over a year ago

You get some error message? Add console.log(xmlhttp.readyState) at the beginning of the onreadystatechange function to see how far it goes.

Man Programmer Over a year ago

getting response in network window but not catch

Collectives™ on Stack Overflow

Catch cross domain response in pure javascript ajax [duplicate]

1 Answer 1

3 Comments

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

3 Comments

Linked

Related