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When I query for larger features I get esri.config.defaults.io.proxyUrl is not set error. Can someone please explain why proxyurl is needed, how I should set it up, what should it point to, and any other relevant information about it? I am running Websphere and IBM http server.

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closed as too broad by Jason Scheirer, PolyGeo, whuber Sep 11 '13 at 22:02

There are either too many possible answers, or good answers would be too long for this format. Please add details to narrow the answer set or to isolate an issue that can be answered in a few paragraphs.If this question can be reworded to fit the rules in the help center, please edit the question.

    
This is really four questions, and the last is an open ended one. –  PolyGeo Sep 11 '13 at 21:26
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I don't see why this question has been closed as too broad. Using a proxy in a JavaScript application is quite a simple thing to understand, and all the required information is present on a single page which @JohnGravois has linked in his answer. There are several question on the need of a proxy in OpenLayers (gis.stackexchange.com/questions/27729, gis.stackexchange.com/questions/24250), and if those are valid questions, then so is this question. –  Devdatta Tengshe Sep 12 '13 at 3:03

1 Answer 1

up vote 4 down vote accepted

the article below explains the purpose of proxies in the Esri JS API and the steps to deploy them.

https://developers.arcgis.com/en/javascript/jshelp/ags_proxy.html

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