When exactly do I need to use a proxy with openlayers? I've done a lot of reading on this but can't seem to find a definitive answer. Wondering if this is the route of my problems.
For instance, if I have one server running Geoserver (WFS) on port 8080 and Apache (serving OpenLayers) on port 80 would I need to use a proxy?
If the servers are physically separate would I need to use proxy?
Best Answer
You need a proxy if you are making an AJAX request to a machine and/or port that is different from the one that your webpage was served from.
So in both your examples above you will need a proxy (on the server that is serving the webpage) if you want to make WMS getfeatureinfo requests or any sort of WFS request. However you do not need a proxy for simple WMS getMap requests.