Ok I think I got it! :]
Looking to the classes around RemoteService I found this in the javadoc
of ServiceDefTarget:
/**
* An interface implemented by client-side RPC proxy objects. *Cast the
object
** * returned from {@link com.google.gwt.core.client.GWT#create(Class)} on a
** * {@link RemoteService} to this interface to initialize the target URL
for the
** * remote service.*
*/
And it let you change the complete URL of the servlet with
setServiceEntryPoint().
I tried with a servlet deployed in a different port and I got the SOP error
from the browser, then after adding it to the whitelist it worked like a
charm :)
Thank goodness it was in this way because otherwise I would have to parse
and serialize all manually.
On Monday, July 15, 2013 2:56:12 AM UTC-5, Thomas Broyer wrote:
>
>
>
> On Monday, July 15, 2013 2:44:38 AM UTC+2, carrizo wrote:
>>
>> If I understand it correctly the RPC framework is intended only for
>> same-origin communication and the alternatives to workaround SOP are: using
>> RequestBuilder (XmlHttpRequest) directly or JsonpRequestBuilder (a <script>
>> tag).
>>
>> The downside with those alternatives is that you lose the automatic
>> serialization magic of the rpc framework which is very sad because these
>> days you can whitelist servers to make XmlHttpRequests safely.
>>
>> So before going to work directly with RequestBuilder I would like to know
>> if there is a way to enable it for xsite use. I'm assuming that the
>> implementation just uses RequestBuilder behind the scenes and that it would
>> be easy to change it.
>>
>
> I don't think CORS is a problem with GWT-RPC. Did you try it?
>
> Notes:
>
> - GWT-RPC is built on top of RequestBuilder, so whatever you can do
> with RequestBuilder you can do it with GWT-RPC too (note: you can make
> your
> async methods return a Request or RequestBuilder instead of 'void';
> Request
> allows you to cancel an ongoing call while RequestBuilder allows you to
> tweak the request before send()ing it)
> - Not all browsers support CORS there days unfortunately (IE, you
> guessed it; only IE10+ supports it: http://caniuse.com/cors)
> - If you cannot use CORS, you still have the option to use a "proxy"
> on the same origin as your HTML host page. A while ago I posted the code
> of
> a servlet in
> https://code.google.com/p/google-web-toolkit/issues/detail?id=3131
>
>
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