[OpenLayers-Users] OpenLayers.loadURL not working

[Barend Köbben]

This sounds very much like a JavaScript sandbox security problem. JavaScript
(so also OpenLayers), is not allowed to fetch data from a domain other then
where it originated from. So if you get a file with openlayers script from
www.mysite.com and try to do a loadURL in it from www.somewherelse.com it
will not work. IE has a setting to override this security (which in general
is a bad idea), but FF hasn't .

If this is your case, you'll need a proxy server/script (search fro that in
the OpenLayers Docs).

-- 
Barend Köbben
Senior Lecturer
University of Twente, Faculty of Geo-Information Science and
Earth Observation (ITC)
PO Box 6, 7500AA Enschede, The Netherlands
+31 (0)53 4874253



On 06-01-10 14:05, "ManuNea" <manunea at hotmail.com> wrote:

> 
> 
> Hi,
> 
> i having same troubles. But recently, i use IE to try the page javascript
> and found that it's work perfectly on IE. No data, in other hand, are
> display under firefox.
> 
> I analyse network trafic and check that OpenLayer under firefox send and
> receive data from my WMS Server, but those data are never accessible.
> 
> An idea ?
> I'm using firefox 3.5.6, and IE 8.0.
> 
> 
> 
> Ivan Grcic-2 wrote:
>> 
>> On Sat, Jul 11, 2009 at 1:52 PM, Simo D <simone.dalmasso at gmail.com> wrote:
>>> 
>>> Hi, the server is the same but on another port. I think it should work in
>>> this way.
>> Nope, it wont. You need a proxy.
>> 
>> Cheers
>> 
>> I use firebug and I inspected all the code with brakepoints but I
>>> get no errors. In the page that I build is also present ext.js but I
>>> don't
>>> use id to do the ajax request. On the server side the application runs
>>> under
>>> django but also this shouldn't be an issue. Analysing the server response
>>> I
>>> see that is correct (200 status code) but empty.
>>> It's strange because on other applications it works fine.
>>> 
>>> Thanks.
>>> Simone.
>>> 
>>> 
>>> Till Adams wrote:
>>>> 
>>>> Simo,
>>>> 
>>>> is the WMS you are requesting from another server?
>>>> 
>>>> In this case, you should use the OL proxy-host to prevent from
>>>> cross-scriptuing errors,
>>>> 
>>>> Till
>>>>> Hi list, I'm using this function "OpenLayers.loadURL(url, '', this,
>>>>> setResponse, setResponse);" to make an getFeatureInfo on geoserver. my
>>>>> url
>>>>> variable is:
>>>>> "var url =  map.layers[2].getFullRequestString(
>>>>>                      {
>>>>>                              REQUEST: "GetFeatureInfo",
>>>>>                              EXCEPTIONS: "application/vnd.ogc.se_xml",
>>>>>                              BBOX: map.getExtent().toBBOX(),
>>>>>                              X: e.xy.x,
>>>>>                              Y: e.xy.y,
>>>>>                              INFO_FORMAT: 'text/plain',
>>>>>                              QUERY_LAYERS: map.layers[2].params.LAYERS,
>>>>>                              FEATURE_COUNT: 1,
>>>>>                              srs: 'EPSG:900913',
>>>>>                              layers: 'layer',
>>>>>                              styles: '',
>>>>>                              WIDTH: map.size.w,
>>>>>                              HEIGHT: map.size.h
>>>>>                      },
>>>>> "
>>>>> 
>>>>> The query returns an empty response (looking through firebug) but if I
>>>>> copy
>>>>> che address in the browser bar, the response is ok.
>>>>> 
>>>>> Have you got any ideas?
>>>>> Thanks in avdance.
>>>>> Simone.
>>>>> 
>>>> 
>>>> 
>>>> --
>>>> ----------------------------------------------------------
>>>> terrestris GmbH & Co. KG
>>>> Irmintrudisstrasse 17
>>>> 53111 Bonn
>>>> Germany
>>>> 
>>>> Till Adams
>>>> Geschäftsführung
>>>> 
>>>> Tel: +49 (0)228 / 962 899-52
>>>> Fax: +49 (0)228 / 962 899-57
>>>> adams at terrestris.de http://www.terrestris.de
>>>> Amtsgericht Bonn, HRA 6835
>>>> ---------------------------------------------------------
>>>> 
>>>> Komplementärin:
>>>> 
>>>> terrestris Verwaltungs GmbH
>>>> 
>>>> vertreten durch:
>>>> Hinrich Paulsen, Till Adams
>>>> 
>>>> _______________________________________________
>>>> Users mailing list
>>>> Users at openlayers.org
>>>> http://openlayers.org/mailman/listinfo/users
>>>> 
>>>> 
>>> 
>>> --
>>> View this message in context:
>>> http://n2.nabble.com/OpenLayers.loadURL-not-working-tp3236300p3242326.html
>>> Sent from the OpenLayers Users mailing list archive at Nabble.com.
>>> _______________________________________________
>>> Users mailing list
>>> Users at openlayers.org
>>> http://openlayers.org/mailman/listinfo/users
>>> 
>> 
>> 
>> 
>> --
>> Ivan Grcic
>> _______________________________________________
>> Users mailing list
>> Users at openlayers.org
>> http://openlayers.org/mailman/listinfo/users
>> 
>> 
> 
> 
> Emmanuel REUTER
> Centre Informatique de Recherche
> Ingénieur "Réseaux non mutualisables"
> INRETS  - 25, Avenue François Mitterrand - Case 24 - 69675 BRON CEDEX
> Tél. : (+33) 04.72.14.25.54 (poste 25.54)
> --
> View this message in context:
> http://n2.nabble.com/OpenLayers-loadURL-not-working-tp3236300p4260519.html
> Sent from the OpenLayers Users mailing list archive at Nabble.com.
> _______________________________________________
> Users mailing list
> Users at openlayers.org
> http://openlayers.org/mailman/listinfo/users

Faculty of Geo-Information Science and Earth Observation (ITC)
University of Twente

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