How I resolve this problem

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Error: XMLHttpRequest cannot load http://google.com/. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://localhost:50339' is therefore not allowed access. The response had HTTP status code 405.

HTML

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
 <html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title></title>
<script type="text/javascript" src="js/jquery-1.12.3.min.js"></script>
<script type="text/javascript" src="js/advajax.js"></script>

    <script type ="text/javascript">

      
        function doOnlineCheck() {
            $.ajax({
                type:"POST",
                url: 'http://google.com',
                success: function (data) {
                    alert('Connection.');
                },
                error: function (data) {
                    alert('No Connection.');
                }
            });
        }
    </script>
    
</head>
<body>
    <div id="status">
        <p id="state">
        <input type="button" />
        </p>
    </div>  
</body>
</html>

What I have tried:

My code is

Posted 18-Apr-16 19:33pm

Ashwini Dhale

Updated 18-Apr-16 20:29pm

Patrice T

v8

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Passion4Code · Answer 1 · 2016-04-18T20:29:00

Solution 1

Hello,

You are trying to make a request to a domain outside of your application domain, for which the browsers blocks, if not from same origin for security reasons and is valid too. You are trying to make a Cross Domain Request.
For this request, your application needs to be CORS prevented, just like POSTMAN is.
Try adding

JavaScript

crossDomain: true,
   dataType: 'jsonp',

to your ajax call properties and check.
I hope that works
You can follow the below link:
AJAX Cross Domain | Cross-Origin Request | jQuery CORS[^]

Update:
Edit fiddle - JSFiddle[^]

Thanks

Posted 18-Apr-16 20:29pm

Passion4Code

Updated 19-Apr-16 20:39pm

v2

Comments

Karthik_Mahalingam 19-Apr-16 4:39am

5

Ashwini Dhale 20-Apr-16 2:35am

thank you for reply

Ashwini Dhale 20-Apr-16 2:36am

Now I get error :

?callback=jQuery1123033…_1461171908492&gws_rd=cr,ssl&ei=wSIXV4m_HcicugSZgJCoCg:1 Uncaught SyntaxError: Unexpected token <

Alert:No internet connection

Passion4Code 20-Apr-16 2:37am

Check for the syntactical error once.

Passion4Code 20-Apr-16 2:38am

Try manually setting call back once. Please check the link in my answer (updated)

Passion4Code 20-Apr-16 2:36am

You are always welcome. I hope this helps you resolve your issue.

Ashwini Dhale 20-Apr-16 2:45am

It works really Thank you.

Can This work in mobile aslo

Ashwini Dhale 20-Apr-16 2:51am

it works only online
not show an alert when offline

Passion4Code 20-Apr-16 3:16am

Not sure about mobile though.

Ashwini Dhale 20-Apr-16 4:01am

ok

Ashwini Dhale 20-Apr-16 4:01am

it's not run on mobile

Ashwini Dhale 20-Apr-16 2:51am

it works for online not for offline doesn't show alert

Passion4Code 20-Apr-16 4:17am

Offline, how will it make the http connection? I think that will break and for mobile, you can look for other options, I guess, and if the same web app running on mobile, then the request will not be an issue.