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A LotusScript agent that works around the Ajax cross-domain limitation member Sean Burgess explains how to create a simple LotusScript agent that can retrieve Ajax data from other domains.

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Ajax is a great tool for building slick applications, but it has one limitation that has made me dismiss using it in the past. After speaking to Chris Toohey, and getting inspiration for (i.e., stealing) some code from him, I've come up with a simple LotusScript agent that allows me to retrieve Ajax data from other domains.

Before I explain further, you should know that, while this LotusScript agent is incredibly simple, I have no idea what kind of impact it will have on the server -- so test it thoroughly before you implement it within your Lotus Notes environment.

First, create a new LotusScript agent and set the "runtime security level" to 2 and allow "Restricted Operations." The agent can be as complex as you want, but the code below is all that's necessary.

Now create an Ajax call on your page that calls the LotusScript agent you've created, then pass the URL you want to retrieve as a query string parameter. That's all it takes to have one Ajax call access another Ajax call to retrieve data from a different domain.

Dim s As New NotesSession Dim doc as NotesDocument Dim xml 
As Variant Dim temp As String Set doc = session.DocumentContext temp = 
StrRight(doc.Query_String_Decoded(0),"url=") Set xml = 
CreateObject("Microsoft.XMLHTTP") xml.Open "GET", temp , False xml.Send 
Print "Content-Type:text/html" Print "Cache-Control:NoCache" 
Print Cstr(xml.ResponseText) Set xml = nothing

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Related information from

  • Ajax Learning Guide
  • FAQ: LotusScript
  • LotusScript Learning Guide
  • Dig Deeper on Lotus Notes Domino Agents

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