SYMPTOM
A user encounters an error message when interacting with Visual Insight in a way that involves long running requests, e.g. adding several attributes or metrics to visualizations at once, interacting with filters, etc.
The following error may be encountered:
An error has occurred We are sorry for the inconvenience. Please contact your administrator for help. AM.getResponseHeader is not a function
3. Review the HTTP response body to identify further details on the root cause of the error. In this case, the executionTimeout setting in IIS has been reached before the request could be completed as seen in the Fiddler HTTP response body
As environment infrastructure may vary between deployments, the above is an example only for this issue occurring on a Strategy Web ASP deployments using IIS. However, the request timeout can occur on different parts of the network infrastructure. If a HTTP server is configured to forward requests to the application server, the HTTP server may close the request before the application server completed the execution in which case the request timeout on the HTTP server side would need to be reviewed. Therefore the exact root cause should be investigated on an individual basis using Fiddler and/or access and error logs of the respective HTTP and web application servers.
