Help with getting Json Format data from external website

Question

I am trying to get Json format data from this website .. http://www.livetraffic.sg/feeds/json

however when i use ajax.. i run into this particular error in my chrome console.

Error:XMLHttpRequest cannot load. Origin null is not allowed by Access-Control-Allow-Origin.

Is the external website preventing my from using information?

Thanks for your help!!!

Sample of my code:

url = "http://www.livetraffic.sg/home2/get_erp_gantry";   
$().ready(function(){ 
        $.get(resturl, function(data) {
        //do something here with data
 });
});

You have url on your first line and resturl in your AJAX call. Is this just a typo in your question? — Richard Fawcett
– Richard Fawcett, Commented Nov 10, 2010 at 9:11

cdhowie · Accepted Answer · 2010-11-10 09:10:29Z

2

This is your browser enforcing the same-origin policy. You are not allowed to make requests to domains other than the domain your script was fetched from.

You will have to set up some server-side proxy on the same domain as the one your script is served from and have it supply the data. (You could also cache this data on the server if it would make sense.)

answered Nov 10, 2010 at 9:10

cdhowie

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1 Comment

cdhowie Over a year ago

Also see Richard's comment. Null is, indeed, not the same domain as your script is served from. And that matches the error better too. :) But if your site is not www.livetraffic.sg you will still need to proxy the data as I describe.

Richard H · Accepted Answer · 2010-11-10 09:12:58Z

2

You cannot make cross-domain JSON requests. Your browser will not allow it. If the target domain allows JSONP requests http://en.wikipedia.org/wiki/JSONP#JSONP then you'll be able to use this work-around instead. Else you'll have to make the request server-side.

answered Nov 10, 2010 at 9:12

Richard H

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MatTheCat · Accepted Answer · 2010-11-10 09:13:23Z

0

Simpler you can perform an ajax query to a local php page which contains

header("Content-type: application/json; charset=utf-8");
echo file_get_contents('http://www.livetraffic.sg/home2/get_erp_gantry');

You just must have allow_url_fopen true.

answered Nov 10, 2010 at 9:13

MatTheCat

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2 Comments

RPM1984 Over a year ago

that's a big assumption the user has php server-side (if he has anything serverside at all).

MatTheCat Over a year ago

Maybe but it's the simpler way IF USER HAS PHP SERVER-SIDE ^^

Dayzza · Accepted Answer · 2010-11-12 02:45:48Z

0

Thanks All! Manage to pull down the Json data from external website using a server side PHP script and then passing variables to my javascript :)

answered Nov 12, 2010 at 2:45

Dayzza

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