Develop Reference

Cross-domain AJAX calls during development: possible?

I am developing applications using Angular and the client side is 100% JS. I am about to replace an old application made using ExtJS but I will not change the server-side. Only the client-side be re-coded from scratch.
I would like to work on this project from anywhere and any machine but I need to be able to perform cross-domain AJAX queries with the original server (server-side is ASP.NET MVC with IIS and I don't want to install Windows + everything on all the computers I use). Is there a way to do this easily?
Thanks for your ideas!
PS: JsonP is not a solution for me.

Couple of things:
At the end of the day you have to enable CORS in your server.
You can use a CORS proxy https://github.com/gr2m/CORS-Proxy for development. This proxy will actually change the request header of X-Origin which browsers even can but "won't" because of policy. So you will be able to make Cross Origin Requests.

If neither JSONP nor CORS are availble to you as options then you will have to take help of server side scripting.
You can create a method in your server side code and get the response from desired cross domain url and return the response to your javascript function.

You can use CORS (Cross Origin Resource Sharing)

What does cross domain mean and where does JSONP stand in this context?

I am a novice .net programmer made a webservice(JS calls the Webserice in my code) and was just trying to call it via my phones browser as am on the same network. With localhost it works perfect. But it fails to call the webservice method from other machine as well. What is the idea behind it and ddoes JSONP be of any help?

It would have helped a lot if you had described what type of webservice you are trying to call. I assume your webservice is RESTFUL. In that case if you'd try to call it from a different domain through XHR it will not succeed because of the browser's Same origin policy. And yes JSONP would be the most feasible alternative here.
You might also want to look at Cross origin resource sharing (CORS). It provides a way for web servers to support cross-site access controls.

Best method to get over cross domain in javascript

i have in my localhost:8111 a restlet app running. This app have a ServerResource that respond http requests from a javascript api that i'm doing.
This Javascript api is running in my apache in localhost, and i want to do http request to the localhost:8111, but i can't for the cross domain problem.
The restlet response in json, which solution is the best in this case?
Thanks!

The same as any other case.
CORS if you want control and are willing to sacrifice some cross-browser support.
JSON-P if you can live with GET only requests and no security over which sites can trigger the request
A proxy on the same origin if you don't need the final server to get credentials directly from the client

Soap Ajax cross domain problem

I'm trying to access a SOAP web service on another server using ajax but I'm getting an Access Control Allow Origin error. The web service returns XML so JSONP can't be used and the web service is also being used in another app so modifications is probably the last option. Any solutions?

If you can't do JSONP, then your options are:
Craete a server proxy at the domain of the page that can fetch the desired result from the other domain and relay it to you from the allowed domain.
If you're willing to limit your browser support to some modern browsers, then you can investigate Cross Origin Resource Sharing (CORS) which is a "safer" way to do cross-domain requests. You can read about it here.
Cross-domain ajax support via Flash which requires the placement of an appropriate cross-domain policy file on the host of the server you want to access. See here and here for some more info.

You can set up a server proxy at the domain of the page.
This page would then call the soap web-service and give you back the response.
This page can then be called via ajax from ui.

Found the probably most easiest way by using Ajaxpro 2, of course it's meant for .NET. http://www.ajaxpro.info/
otherwise, jfriend00's suggestions are the next best options.

Cross Domain Get Request in JS/JQuery

Is there a way without using a server proxy to perform a cross domain GET or POST request?

If you are with only the current day browsers and have control over the external domain, you can use Cross-Origin Resource Sharing [CORS]
Most people do not have that luxury so you either have to use JSON with Padding [JSONP] or you need to use a serverside proxy.

As far as I know, there is no way to make a cross-domain request in JS, but you could just query your server and make the request from there.
Edit: as Russ Cam said above, look into JSONP.

Using YQL is an easy way of doing cross domain ajax. You can specify to have a JSON or XML object returned. IBM has a good tutorial: http://www.ibm.com/developerworks/web/library/wa-aj-jsonp2/index.html
Though just search for yql cross domain and it'll bring up numerous tutorials.

You could use Flash. Flash allows you to make a cross-domain request to another server provided that it serves a Flash cross-domain policy file (an XML file). So you will need administrative access to the other server in order to set that up.
If you think this option might be what you're looking for or you want to do SSL/TLS cross-domain, check out the opensource Forge project:
http://github.com/digitalbazaar/forge/blob/master/README

AJAX Cross Domain is a low-cost library that allows to perform cross-domain AJAX requests. http://www.ajax-cross-domain.com/