We use integrated reports in an ASP.Net site, we use the ReportViewer Control to embed them in them into the site, we got all kind of javascript and access denied errors after deploying it to our IIS 7 test server. Appears you have to add a handler to the IIS configuration.
Resolution:
- Open Internet Information Services (IIS) Manager and select your Web application.
- Under IIS area, double-click on Handler Mappings icon.
- At the Action pane on your right, click on Add Managed Handler.
- At the Add Managed Handler dialog, enter the following:
Request path: Reserved.ReportViewerWebControl.axd
Type: Microsoft.Reporting.WebForms.HttpHandler
Name: Reserved-ReportViewerWebControl-axd - Click OK.
Reserved-ReportViewerWebControl-axd handler is now added to your Handler Mappings list. Notice that the following line has also been added to your Web.config file under the system.webserver’s handler section:
<add name=”Reserved-ReportViewerWebControl-axd” path=”Reserved.ReportViewerWebControl.axd”
verb=”*” type=”Microsoft.Reporting.WebForms.HttpHandler” resourceType=”Unspecified”
/>
Found at: http://otkfounder.blogspot.com/2007/11/solving-reportviewer-rendering-issue-on.html