ReportViewer "Missing URL parameter: Name"

Question

In a web application I'm working on the ReportViewer keeps giving me a error "Missing URL parameter: Name". I have found the cause but not a solution.

The url that is causing the exception from the report viewer

Reserved.ReportViewerWebControl.axd?ReportSession=3bkunv2wte3wmnabkquyr1y0&ControlID=1e2b5870e07b46abac7fd32a9e0e4b9d&Culture=1033&UICulture=1033&ReportStack=1&OpType=ReportArea&Controller=ctl00_ASPxRoundPanel3_PageContent_Wizard1_ReportViewer1&PageNumber=1&ZoomMode=Percent&ZoomPct=100&ReloadDocMap=true&SearchStartPage=0&LinkTarget=_top

if you notice in the query string instead of "&name=" for some reason it becomes "&amp ;Name=".

I noticed on numinous google searches there seams to be a lot of people having the same problem but not one solution.

Answer 1

Sounds like something is mangling your URL somewhere. Do you by chance have a Bluecoat proxy in place? I saw something about Bluecoat mangling the URL.

If that's the case and you have control over the proxy, you might be able to get a tunnel punched through it for your reports. Otherwise, you might have to rewrite the URL on your end.

Check here for more information (last post in the thread has a possible workaround).

Answer 2

http://csharp-matt.blogspot.com/2010/06/effects-of-bluecoat-proxy-on-aspnet.html