I have a c# asp.net web application in .net 1.1. The web application is a website in IIS and works online at the world wide web. There are very much customers all over the world of that website and everything works fine. There is one customer in germany where it doesnt work fine. When he press on a button "New" he gets a popup with the 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 calls to Response.Write(),
response filters, HttpModules, or server trace is enabled.
In the past he didnt get this error. I ask this customer to check the website on another machine in his organisation, but he still get this error. So its something in the organisation. Some machine settings or network settings I think, because other customers didn't get this error.
Someone know why this organisation get this error ? Is it possible that the problem is at the machine or network settings? Or something with the web browser version/settings?
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