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I'm working on a VGI Web portal. I'm using OpenLayers and the application is running throw the TomCat server. I would like to know if it's possible to display layers from Ushahidi or others VGI tools using OGC services (Web Feature Service). If it is possible, how could I do it?

Thanks you, Regards, Rafael

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there is no problem adding any public WFS to OpenLayers.

Here is another question that can help you How to add a simple WFS layer from GeoServer to OpenLayers map?.

I recommend you this two links:

The only issue you can have with WFS is requests are made using AJAX and you can have problems with XDR (cross domain requests. Because this you need a "proxy", that is, a script on your server that receives the request from the client side, make the real request and return the values to the client side.

Cheers.

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