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Closed Unassigned: doPostBack issue when EnablePartialRendering=true [27453]

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just for information (my post from IIS forum):


SOLVED: the issue traced to AjaxControlToolkit when the ToolkitScriptManager configured with the EnablePartialRendering

SOLVED CONTINUED: it was more complicated i.e. th previous solution improved but not fixed the issue... after deeper investigation the culpit was related to closing modal window opened with window.showModalDialog (child window was iframe-based page). sometimes it wasn't closing the window fully for some reason (like once in 7 times; all the solutions like base=_self & etc tested). updated the child page (removed iframe) and all the related javascripts (opening /closing child are plain window.close i.e. without _win = window.open ('','_self','') and no parameters passed to modal). now it's more stable but still possible to reproduce (for example by doing it all locally on hosting server)

in ASP.NET 4 application (over HTTPS) javascript executes doPostBack and it results in indefinite request (all the main browsers: IE 10, 9, Chrome). need to restart application pool to terminate it.

the main problem is: it happens only on some servers (Win8R2 & Win2012)

but the same application runs without any issues on Win7 (development PC) and Win2003 server (IIS6)

i've compared configuration beween Win7 & servers and everything looks identical. i even tied to turn-off some features on server (cashing, compression etc) without any effect.

i'm out of ideas on why it's happening so maybe someone will suggest either what to look for or what is wrong.



Note: looks very like following topic: http://forums.isaserver.org/m_2002083528/mpage_1/key_/tm.htm but we are using Anonymous authentication only (everything else is disabled)



Comments: It seems that this error is caused by ToolkitScriptManager. Starting with the v15.1 release, we have removed it. So now, this problem is resolved.

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