Web Forms :: SSRS IIS7 Authentication Breaking Ajax?
Mar 11, 2011
Before I get started it's important to note that this issue only happens in IIS7 and IE7, which means it works fine in all our IIS6 environments and Chrome and Firefox hitting IIS7.
We have an ASP.NET 3.5 application that is doing a very basic window.open to open our report server.
ex.
window.open('http://555.55.5.55/ReportServer', 'Reports');
Once launched the user is prompted for their username and password. If the user selects cancel and goes back to the parent window they can use all the Ajax functionality just fine; however, if the user logs into report server then all the Ajax functionality on the parent window ceases to work (example error below). We changed the javascript line above to popup a window to google and everything worked fine. We even tried changing it to '_self' to act like a redirect and we had the same results, everything failed. The issue appears to be related to something in IE7 and the authentication popup.
We've already set the application pool hosting the site in IIS7 to classic mode and this did not resolve our problem.
Error:
Error: Sys.WebForms.PageRequestManagerParserErrorException: The message received from the server could not be parsed. Common causes for this error are when the response is modified by call to Reponse.Write(), response filters, HttpModules, or server trace is enabled.
Details: Error Parsing near ' <!DOCTYPE html PUB'.
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Figure 2.
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Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
If Not Page.IsPostBack Then
Try
BindData()
Catch ex As Exception
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lblError.Visible = True
lblError.Text = Err.Description()
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