[OpenLayers-Users] Catching JSON

[Smaran Harihar]

Thanks for the reply Steve.

I am using bottle to respond to the lat n long which has been sent. Since I
am not using CGI, using the cgi proxy is not helping. Also I did try using
cgi proxy but it made no difference.

On Fri, Aug 17, 2012 at 11:45 AM, Stephen Woodbridge <
woodbri at swoodbridge.com> wrote:

> Is you main page loading from http://128.196.142.94:9000/...
> If not you are trying to make an Ajax request to a host that is not the
> same as the page that you loaded. This is not allowed because of Same
> Origin Policy. You can setup a proxy to work around this.
>
> -Steve W
>
>
> On 8/17/2012 2:35 PM, Smaran Harihar wrote:
>
>> Hi,
>>
>> I am returning a JSON to a GeoExt app and this is the code that is
>> collecting the return,
>>
>>      var control = new OpenLayers.Control.Click({
>>                            trigger: function(evt) {
>>                            var lonLat = evt.xy;
>>                            if (popup) popup.close();
>>                            var  request = Ext.Ajax.request({
>>       url:"http://128.196.142.94:**9000/info?lat=<http://128.196.142.94:9000/info?lat=>
>> "+
>> panel.map.**getLonLatFromViewPortPx(**lonLat).lat +"&lon=" +
>> panel.map.**getLonLatFromViewPortPx(**lonLat).lon,
>>                            disableCaching: false,
>>                            success: function(response) {
>>       var obj = Ext.decode(response.**responseText);
>>       console.log(obj);
>>       console.dir(obj);
>>       addToPopup(lonLat, response.responseText);
>>       },
>>   failure: function(response) {
>>       console.log('server-side failure with status code ' +
>> response.status);
>>       addToPopup(lonLat, "Server side Failure");
>>   }
>>                                   //callback: myhandler
>>                       });
>>      }});
>>
>> I wish to obtain the returned JSON and then assign it to the popUp but
>> whenever I try to connect to the App it is returning the following error,
>>
>>      OPTIONS
>> http://128.196.142.94:9000/**info?lat=55.44873046875&lon=-**
>> 118.17626953125<http://128.196.142.94:9000/info?lat=55.44873046875&lon=-118.17626953125>
>> 405 (Method Not Allowed)
>>      XMLHttpRequest cannot load
>> http://128.196.142.94:9000/**info?lat=55.44873046875&lon=-**
>> 118.17626953125<http://128.196.142.94:9000/info?lat=55.44873046875&lon=-118.17626953125>
>> .
>> Origin null is not allowed by Access-Control-Allow-Origin.
>>      test.html:222server-side failure with status code 0
>>
>> If you simply pass the url
>> `http://128.196.142.94:9000/**info?lat=55.44873046875&lon=-**
>> 118.17626953125`<http://128.196.142.94:9000/info?lat=55.44873046875&lon=-118.17626953125><
>> http://128.196.142.94:9000/**info?lat=55.44873046875&lon=-**
>> 118.17626953125%60<http://128.196.142.94:9000/info?lat=55.44873046875&lon=-118.17626953125%60>
>> >
>>
>> you will obtain the JSON but for some reason there is failure that keeps
>> occurring in the application.
>>
>> Is there CORS that can be used in the OpenLayers or GeoExt. I have tried
>> using ExtJS JSON-P but I am not sure what should I enter in the
>> 'callback' of,
>>
>> <script src="http://domainB.com/users?**callback=someCallback<http://domainB.com/users?callback=someCallback>
>> "></**script>
>>
>>
>> --
>> Thanks & Regards
>> Smaran Harihar
>>
>>
>>
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>>
>>
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-- 
Thanks & Regards
Smaran Harihar
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