cross-domain policy file

Question

cross-domain policy file

Currently, I am attempting to make a web service call from JavaScript using AJAX:

$.ajax({
    type: "GET",
    url: "http://[REMOTE-SERVER-IP]:8080/api/service",
    contentType: "application/jsonp",   
    crossDomain: true,
    success: successFunc,
    error: errorFunc
});

My research has shown that in order to allow access to the method, a "crossdomain.xml" file needs to be created on the server at http://[REMOTE-SERVER-IP]:8080/crossdomain.xml:

<cross-domain-policy>
   <allow-access-from domain="[SERVICE-CALLER-IP]"/>
</cross-domain-policy>

However, even after taking these steps, when trying to call the method, an error is being displayed by the JavaScript debugger:

XMLHttpRequest cannot load http://[REMOTE-SERVER-IP]:8080/[URL]. Origin http://localhost:8080 is not allowed by Access-Control-Allow-Origin

I am unsure of what I might be doing wrong. Any insights would be greatly appreciated!

Thank you for your help!

javascript ajax cross-domain

Answer 1

Answer №1

If you have access to the server, there are two recommended options to consider in this scenario.

Option one involves adding a callback=? parameter to the request URL and adjusting the server response accordingly. The server should include the callback function in the response in this format:

callback_function_from_url([your_server_response])
Alternatively, option two suggests adding Access-Control-Allow-Origin: * header to your server response. You can also specify a specific address like
```
Access-Control-Allow-Origin: [your_client_address]
```
.

Personally, I would recommend going with option 2 as it provides a more convenient way to achieve the task. Additionally, you have better control over your server response, making it a more secure choice compared to option 1.

For further information, refer to CORS documentation

Answer 2

If you have access to the server, there are two recommended options to consider in this scenario.

Option one involves adding a callback=? parameter to the request URL and adjusting the server response accordingly. The server should include the callback function in the response in this format:

callback_function_from_url([your_server_response])
Alternatively, option two suggests adding Access-Control-Allow-Origin: * header to your server response. You can also specify a specific address like
```
Access-Control-Allow-Origin: [your_client_address]
```
.

Personally, I would recommend going with option 2 as it provides a more convenient way to achieve the task. Additionally, you have better control over your server response, making it a more secure choice compared to option 1.

For further information, refer to CORS documentation

cross-domain policy file

Answer №1

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