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ScriptManager Postback Bug? (when URLs contains "#&&" characters)

Posted By:      Posted Date: October 05, 2010    Points: 0   Category :ASP.Net


We are observing a strange Postback issue on asp.net(4.0) Pages containing a Scriptmanager( or ToolkitScriptManager).

To replicate the issue

1. Add a ScriptManager in .ASPX Page(say foo.aspx). Set EnableHistory="true" for the ScriptManager.

2. Browse to this page with #&&<anystring> appended to the URL - (like http://localhost:1125/foo.aspx#&&a=b). The foo.aspx loads two times. The second Postback to foo.aspx seems to be caused  by ScriptManager.

Is anybody able to replicate this? Also, is there any possible workaround for this?

Thanks in advance,

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