David,
On Nov 3, 2011, at 2:17 PM, Fawcett, David (MPCA) wrote:
I posted a similar question to the OpenLayers list, but know that there isn't
complete overlap.
Can anyone point me to an example that uses JSONP to get around the same
origin policy when making a getFeatureInfo request from OpenLayers to
MapServer?
Not a direct answer to your question, but two alternative approaches that might
work rather well (I used getFeatureInfo only briefly, but then gave up on it) --
1. Use something like jQuery (my Js weapon of choice) to construct an ajax
query. A JSONP query requires just one additional letter P.
2. Use a proxy. Remember, a few days ago I was asking about how to specify
different classes in the browser address bar (in the URI) and use that to
specify which classes are rendered by MapServer? I solved that by using a
proxy... just a couple of lines of Perl, and that was solved.
A bonus hint -- if your data are in Pg, don't even bother with getFeatureInfo.
Just query the db directly and return the data as JSON (or, JSONP, in this
case).
--
Puneet Kishor___
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