I need to create a function that retrieves plain text from a public URL and use it for validation purposes.
I attempted to do this using the Dojo AJAX GET method, but encountered issues when trying to access a different domain (only works on Explorer).
How can I successfully make a call to an external domain and handle the response?
The URL will be similar to:
http://my.socket:8080/?option1=1&option2=2
This can be accomplished using either AJAX or a Java class.
Client-side ajax operates within the constraints of the Same Origin Policy, preventing foreign domain ajax calls to be made.
To work around this limitation, it is recommended to handle GET requests on the server side of your application and then use ajax to make a call to your application as a gateway to fetch data from a remote server.
Because of the same origin policy, performing simple ajax calls across different domains is restricted.
One way to work around this limitation is by making an ajax call to a server page on the same domain, which can then execute an HTTP get request to retrieve the content for you.
Alternatively, you can utilize YQL
var url = 'http://my.socket:8080/?option1=1&option2=2'; // website you want to scrape
var yql = 'http://query.yahooapis.com/v1/public/yql?q=' + encodeURIComponent('select * from html where url="' + url + '"') + '&format=json&callback=?';
$.getJSON(yql,function(data){
if(data.query.results){
var result = data.query.results.double.content.replace(/<script[^>]*>[\s\S]*?<\/script>/gi, '');
alert(result);
}
});
Source
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