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Editorial Team
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Asked: 2026-05-11T22:27:38+00:00

I’m getting XSS errors when trying to consume a .NET web service and I’m

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I’m getting XSS errors when trying to consume a .NET web service and I’m sure I can fix it with a bit of proxying. However, I’ve never proxied IIS before. Can anyone point me in the right direction for a good guide/tutorial please?

UPDATE

First off my apologies for being so vague!

I have a website that is calling a web service in order to populate an AJAX drop-down list. When I call the code below I don’t get an exception as such, I get an pop-up that gives the message “This page is accessing information that is not under its control. This poses a security risk …”.

In .apsx file

<asp:DropDownList ID="DocCategoryDropDown" 
                  runat="server" 
                  OnSelectedIndexChanged="DocCategoryDropDown_SelectedIndexChanged"
                  AutoPostBack="true">
</asp:DropDownList>
<ajaxToolkit:CascadingDropDown ID="DocCategoryCascadingDropDown" 
                               runat="server" 
                               TargetControlID="DocCategoryDropDown"
                               LoadingText="[Loading...]" 
                               Category="CategoryId" 
                               UseContextKey="True" 
                               ContextKey="NY"
                               PromptText="Select a Category" 
                               ServiceMethod="GetDocCategory" 
                               ServicePath="tba">
</ajaxToolkit:CascadingDropDown>

in C# file

DocCategoryCascadingDropDown.ServicePath = path;

If path is on the same server as the web site it works fine but if path is not we get the warning. How do I stop this message from popping up?

TIA

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1 Answer

  1. Editorial Team

    After causing a lot of confusion and getting nowhere with this post I decided to commit the cardinal sin of reposting … I’m sorry but it was the only way to etch-a-sketch the topic as far as I saw it.

    Anyway, that didn’t seem to get any response either but, through a long and arduous path, I eventually managed to ask the right question and think that I have a solution.

    See here for the answer I have so far.

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