I've a AjaxScriptManager with EnableHistory set to True in my aspx page and on clicking save button, we are creating a history point. On our local systems, we are not getting any error from aspx page but from test environment, we are getting below error ONLY for ONE user:
A history point can only be created during an asynchronous postback.
What are the reasons for this error? Any help on how to reproduce this error?
Thanks in advance