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POAsp.net Invalid viewstate - Maybe IE8 4k dropped bug?
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I'm getting 100+ errors per day on my website with System.Web.HttpException: Invalid viewstate. at System.Web.UI.Page.DecryptStringWithIV The website is asp.net 3.5 running on iis6 , not running in a web-garden/web-farm , single server. The website is using xhtml doctype. viewstate size vary from 2kb-20kb Here are a few sample errors. <pre><code>Machine: ML Framework Version: 2.0.50727.3603 Assembly Version: 6.5.3664.33889 Source: http://www.domain.com/WebResource.axd?d=z5VmXXoSLLpQHoPictureAlert Exception: System.Web.HttpException: Invalid viewstate. at System.Web.UI.Page.DecryptStringWithIV(String s, IVType ivType) at System.Web.Handlers.AssemblyResourceLoader.System.Web.IHttpHandler.ProcessRequest(HttpContext context) at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) Machine: MLFramework Version: 2.0.50727.3603 Assembly Version: 6.5.3664.33889 Source: http://www.mydomain.com/ScriptResource.axd?d=SE0Ej7OlEAx91j2Cjv_6KkRPplqT-5wB4M7CZPdGdGn3LahLwqlRPApUcdxBsbFXYHZ91Q76FHAHWgHs8SmOC4zemr7 siym0QY0rF3XtJTu%3C/a%3E%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%3Ca%20id= Exception: System.Web.HttpException: Invalid viewstate. at System.Web.UI.Page.DecryptStringWithIV(String s, IVType ivType) at System.Web.UI.Page.DecryptString(String s) at System.Web.Handlers.ScriptResourceHandler.DecryptParameter(NameValueCollection queryString) at System.Web.Handlers.ScriptResourceHandler.ProcessRequestInternal(HttpResponse response, NameValueCollection queryString, VirtualFileReader fileReader) at System.Web.Handlers.ScriptResourceHandler.ProcessRequest(HttpContext context) at System.Web.Handlers.ScriptResourceHandler.System.Web.IHttpHandler.ProcessRequest(HttpContext context) at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) </code></pre> Solutions i already tried: <ol> <li>Wraping all inline javascript with // </li> <li>Setting enableViewStateMac to false </li> <li>Setting maxPageStateFieldLength to 5000 bytes. </li> <li>Define a MachineKey in web.config using <a href="http://www.developmentnow.com/articles/machinekey_generator.aspx" rel="nofollow noreferrer">http://www.developmentnow.com/articles/machinekey_generator.aspx</a></li> </ol> i cant figure out what causes the error or which page generates them. help please! thank you!
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<c#><.net><asp.net><viewstate>
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Asp.net Invalid viewstate - Maybe IE8 4k dropped bug?
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